UPC2798GR
D
250 MHz QAM IF DOWNCONVERTER
FEATURES
DESCRIPTION
• RF/LO FREQUENCY RANGE: 30-250 MHz
NEC's UPC2798GR is a Silicon MMIC Downconverter manufactured with the NESAT™III silicon bipolar process. This
product consists of an input AGC amplifier, mixer, local oscillator, and video amplifier. It is housed in a small 20 pin SSOP
package. The device is designed for use as an IF downconverter
for digital CATV settops and cable modems utilizing QAM
modulation.
UE
• ON CHIP VCO
• LOW DISTORTION AGC AMPLIFIER:
-9 dBm IIP3 @ MIN Gain
• ON CHIP VIDEO AMP: 3.0 Vp-p (VCC = 5 V)
• SMALL 20 PIN SSOP PACKAGE
NEC's stringent quality assurance and test procedures ensure
the highest reliability and performance.
IN
• AVAILABLE ON TAPE AND REEL
ELECTRICAL CHARACTERISTICS (TA = 25°C, RF = 45 MHz, LO = 55 MHz, PLO = -10 dBm, unless otherwise specified)
NT
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
PARAMETERS AND CONDITIONS
UPC2798GR
S20
UNITS
MIN
TYP
MAX
Total Block (VCC1 = 5 V, VCC2 = 5 V, RL = 1 kΩ)
Circuit Current (no input signal)
mA
24.0
35.5
45.0
CGMAX1
Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B shorted
dB
68.0
74.0
76.0
CGMAX2
Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B open
dB
CGMIN1
Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B shorted
dB
CGMIN2
Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B open
dB
22.0
ICC
58.0
32.0
39.0
Input Intercept Point, VAGC = 1.0 V, pins G1A - G1B shorted
dBm
-14.0
Input Intercept Point, VAGC = 1.0 V, pins G1A - G1B open
dBm
-8.0
SC
O
IIP3
IIP3
43.0
Total Block (VCC1 = 5 V, VCC2 = 9 V, RL = 1 kΩ)
Circuit Current (no input signal)
mA
32.0
47.0
60.0
CGMAX1
ICC
Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B shorted
dB
72.0
78.5
81.0
CGMAX2
Maximum Conversion Gain, VAGC = 4.0 V, pins G1A - G1B open
dB
59.0
CGMIN1
Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B shorted
dB
43.5
CGMIN2
Minimum Conversion Gain, VAGC = 1.0 V, pins G1A - G1B open
dB
22.5
dBm
-7.5
IIP3
Input Intercept Point, VAGC = 1.0 V, pins G1A - G1B open
AGC Amplifier and Mixer Block (VCC1 = 5 V)
ICC
Circuit Current (no input signal)
mA
15.0
fOSC
fIF
CGMAX
RF Input Frequency Range
OSC Frequency Range
IF Output Frequency Range
Maximum Conversion Gain, VAGC = 4.0 V
MHz
MHz
MHz
dB
30
30
DC
CGMIN
Minimum Conversion Gain, VAGC = 1.0 V
dB
GCR
AGC Dynamic Range, VAGC = 1.0 to 4.0 V
dB
Noise Figure, SSB, VAGC = 4.0 V (MAX Gain)
dB
VAGC (H)
AGC Voltage High, at MAX Gain
V
VAGC (L)
AGC Voltage Low, at MIN Gain
DI
fRF
NF
AGC IIP3
AGC Input Intercept Point, at MIN Gain
23.0
250
250
150
25
-7
26
32
9
4.0
V
dBm
28.0
1.0
-9
California Eastern Laboratories
UPC2798GR
ELECTRICAL CHARACTERISTICS (TA = 25°C, RF = 45 MHz, LO = 55 MHz, PLO = -10 dBm, unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
UPC2798GR
S20
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
Circuit Current (no input signal)
mA
9.0
12.5
17.0
Output Voltage
Vp-p
G1
Differential Gain 1, pins G1A and G1B shorted, VOUT = 3.0 Vp-p
V/V
200
G2
Differential Gain 2, pins G1A and G1B open, VOUT = 3.0 Vp-p
V/V
26
Video Amp Block (VCC2 = 5 V, differential, RL = 1 kΩ)
Video Amp Block (VCC2 = 9 V, differential, RL = 1 kΩ)
VOUT
Circuit Current (no input signal)
mA
Output Voltage
G1
Differential Gain 1, Pins G1A and G1B shorted
G2
Differential Gain 2, Pins G1A and G1B open
17.0
24.0
Video Amp Block (VCC2 = 5 V, single ended, RL = 50 Ω)
AVS1
Single-ended Gain, pins G1A - G1B shorted
AVS2
Single-ended Gain, pins G1A - G1B open
IIP3
Input Intercept Point, pins G1A - G1B open, f1 = 9 MHz, f2 = 11 MHz
Vp-p
3.0
V/V
385
V/V
28.5
dB
40.0
dB
22.5
dBm
-11.5
IN
Video Amp Block (VCC2 = 9 V, single ended, RL = 50 Ω)
AVS1
Single-ended Gain, pins G1A - G1B shorted
dB
45.0
AVS2
Single-ended Gain, pins G1A - G1B open
dB
23.5
IIP3
Input Intercept Point, pins G1A - G1B open, f1 = 9 MHz, f2 = 11 MHz
dBm
-5.0
MHz
50
Video Amp Block (VCC2 = 5 or 9 V, common, RL = 1 k Ω)
Bandwidth 1, G1
BWG2
Bandwidth 2, G2
MHz
50
RIN 1
Input Resistance 1, G1
kΩ
3.5
RIN 2
Input Resistance 2, G2
kΩ
9.7
1.6
NT
BWG1
CIN
Input Capacitance, CIN
pF
CMRR
Common Mode Rejection Ratio, VCM = 1.0 Vp-p, ƒ = 100 kHz
dB
80
PSRR
Power Supply Rejection Ratio
dB
70
Rise Time
ns
2.6
ns
4.4
Propagation Delay Time
SC
O
τR
τD
ABSOLUTE MAXIMUM RATINGS1 (TA = 25°C)
SYMBOLS
VCC1
VCC2
PD
UNITS
RATINGS
Supply Voltage 1
(Mixer Block)
PARAMETERS
V
6.0
Supply Voltage 2
(Video Amp Block)
V
6.0
Power Dissipation,
TA = 85˚C2
mW
430
Operating Temperature
°C
-40 to +85
TSTG
Storage Temperature
°C
-55 to +150
SYMBOLS
PARAMETERS
UNITS
RATINGS
DI
TOP
VCC1
Supply Voltage 1
(Mixer Block)
V
6.0
VCC2
Supply Voltage 2
(Video Amp Block)
V
11.0
PD
Power Dissipation,
TA = 75˚C2
mW
500
TOP
Operating Temperature
°C
-40 to +75
TSTG
Storage Temperature
°C
-55 to +150
Notes:
1. Operation in excess of any one of these parameters may result
in permanent damage.
2. Mounted on a 50 x 50 x 1.6 mm epoxy glass PWB.
32.0
UE
ICC
3.0
D
ICC
VOUT
RECOMMENDED
OPERATING CONDITIONS
SYMBOL
PARAMETER
VCC1
Supply Voltage 1
VCC2
UNITS MIN TYP MAX
V
4.5
5.0
5.5
Supply Voltage 2
V
4.5
5.0
10.0
TA1
Operating Temp. Range 1*
°C
-40
+25
+85
TA2
2**
°C
-40
+25
+75
Operating Temp. Range
Notes:
* @ VCC1 = VCC2 = 4.5 to 5.5 V
** @ VCC1 = 4.5 to 5.5 V, VCC2 = 4.5 to 10.0 V
UPC2798GR
TYPICAL CHARACTERISTICS (by measurement circuit 1: AGC Amp and Mixer Block)
CIRCUIT CURRENT vs.
SUPPLY VOLTAGE
CONVERSION GAIN vs.
INPUT FREQUENCY
30
40
VAGC = 4.0 V
Total
Mixer
+AGC+VCO
30
Video Amp
10
0
0
4
2
6
8
10
VAGC = 2.6 V
0
-10
VAGC = 0.0 V
-20
-30
12
PRF = 60 dBm
fOSC = fRF+5 MHZ, POSC = -10 dBm
VCC = 5 V, TA = 25˚C
0
50
200
150
250
300
IN
CONVERSION GAIN vs.
IF FREQUENCY
NOISE FIGURE vs. AGC VOLTAGE
30
30
VAGC = 4.0 V
NT
Noise Figure, NF (dB)
20
10
VAGC = 2.6 V
0
-10
VAGC = 0.0 V
-20
20
10
VCC = 5 V
fRF = 100 MHZ
fOSC = 120 MHZ
POSC = -10 dBm
TA = 25˚C
DSB
SC
O
fRF = 45 MHZ, PRF = -60 dBm
fOSC = 50~200 MHZ, POSC = -10 dBm
VCC = 5 V, TA = 25˚C
-30
0
30
60
120
90
150
0
180
0
1
IF Frequency, fIF (MHz)
10
0
1
2
VCC = 5 V
VAGC = 0 V
fRF1 = 44 MHZ
fRF2 = 46 MHZ
-30 fOSC = 55 MHZ
POSC = -10 dBm
TA = 25˚C
-40
-20
POUT
-50
IM3
-60
-70
-80
-10
0
5
-10
Output Power, POUT (dBm)
DI
20
4
3
THIRD ORDER INTERMODULATION
LEVEL AND OUTPUT POWER vs.
INPUT POWER
30
VCC = 5 V
fRF = 45 MHZ
PRF = -60 dBm
fOSC = 50 MHZ
POSC = -10 dBm
TA = 25˚C
2
AGC Voltage, VAGC (V)
CONVERSION GAIN vs.
AGC VOLTAGE
Conversion Gain, CG (dB)
100
Input Frequency, fRF (MHz)
Supply Voltage, VCC (V)
Conversion Gain, CG (dB)
10
UE
20
20
D
no input
signal
TA = 25˚C
VAGC = 0 V
Conversion Gain, CG (dB)
Circuit Current, ICC (mA)
50
3
4
AGC Voltage, VAGC (V)
5
-90
-60
-50
-40
-30
-20
Input Power, PIN (dBm)
-10
0
UPC2798GR
STANDARD CHARACTERISTICS (by measurement circuit 2: Video Amp, RL = 1 kΩ, TA = 25˚C)
DIFFERENTIAL GAIN vs.
INPUT FREQUENCY
DIFFERENTIAL GAIN vs.
INPUT FREQUENCY
40
400
300
200
100
VCC = 5 V
20
10
0
0
20
0
VCC = 9 V
G1A-G1B : open
POUT = 1.5 V p-p const.
G1A-G1B : short
POUT = 1.5 Vp-p const.
40
80
60
100
0
20
40
OUTPUT POWER vs. INPUT POWER
(VIDEO AMP)
0
-10
VCC = 5 V
-20
VCC = 9 V
-10
NT
Output Power, Pout (dBm)
VCC = 9 V
-20
VCC = 5 V
-30
-40
fin = 10 MHZ
G1A-G1B : open
SC
O
fin = 10 MHZ
G1A-G1B : short
-30
-40
-30
-10
-20
0
Input Power, PIN (dBm)
DIFFERENTIAL GAIN
vs. RESISTANCE
500
fin = 10 MHZ
400
300
DI
Differential Gain (V/V)
100
OUTPUT POWER vs. INPUT POWER
(VIDEO AMP)
0
VCC = 9 V
200
100
0
80
60
Input Frequency, fIN (MHz)
IN
Input Frequency, fIN (MHz)
Output Power, Pout (dBm)
30
UE
VCC = 5 V
D
Differential Gain (V/V)
Differential Gain (V/V)
VCC = 9 V
short
VCC = 5 V
30
43
56
100
246
Resistance (Ω)
2000
open
-50
-40
-30
-20
-10
Input Power, PIN (dBm)
0
10
UPC2798GR
STANDARD CHARACTERISTICS (by measurement circuit 3: Video Amp, RL = 50 Ω, TA = 25˚C)
GAIN vs. INPUT FREQUENCY
GAIN vs. INPUT FREQUENCY
50
40
30
10
VCC2 = 5 V
G1A-G1B: short
0
0.1
1
10
100
1
10
100
Input Frequency, fIN (MHz)
IN
GAIN vs. INPUT FREQUENCY
GAIN vs. INPUT FREQUENCY
Single-ended Gain, AVS (dB)
50
40
30
20
10
SC
O
VCC2 = 9 V
G1A-G1B: short
1
40
NT
Single-ended Gain, AVS (dB)
10
VCC2 = 5 V
G1A-G1B: open
50
10
30
20
10
0
0.1
100
VCC2 = 9 V
G1A-G1B: open
1
10
100
Input Frequency, fIN (MHz)
Input Frequency, fIN (MHz)
THIRD ORDER INTERMODULATION LEVEL
AND OUTPUT POWER vs. INPUT POWER
THIRD ORDER INTERMODULATION LEVEL
AND OUTPUT POWER vs. INPUT POWER
20
POUT
-20
-40
-60
-80
-50
-40
-30
IM3
VCC2 = 5 V
f1 = 9 MHz
f2 = 11 MHz
G1A–G1B: open
-20
Input Power, PIN (dBm)
-10
20
Output Power, POUT (dBm)
0
DI
Output Power, POUT (dBm)
20
0
0.1
Input Frequency, fIN (MHz)
0
0.1
30
UE
20
40
D
Single-ended Gain, AVS (dB)
Single-ended Gain, AVS (dB)
50
0
POUT
-20
IM3
-40
VCC2 = 9 V
f1 = 9 MHz
f2 = 11 MHz
G1A–G1B: open
-60
-80
-50
-40
-30
-20
Input Power, PIN (dBm)
-10
UPC2798GR
TYPICAL CHARACTERISTICS (by measurement circuit 4: Total Block, fRF = 45 MHz, PRF = -60 dBm, Posc = -10 dBm)
CONVERSION GAIN vs.
IF FREQUENCY
CONVERSION GAIN vs.
IF FREQUENCY
80
VAGC = 4 V
VAGC = 1 V
20
VCC1 = 5 V, VCC2 = 5 V
G1A - G1B : short
1 KΩ load, TA = 25˚C
40
80
120
VAGC = 1 V
20
0
160
0
IF Frequency, fIF (MHz)
40
80
120
160
IN
IF Frequency, fIF (MHz)
CONVERSION GAIN vs.
IF FREQUENCY
CONVERSION GAIN vs.
IF FREQUENCY
80
NT
80
60
VAGC = 4 V
40
VAGC = 3 V
20
SC
O
Conversion Gain, CG (dB)
VAGC = 3 V
40
VCC1 = 5 V, VCC2 = 9 V
G1A - G1B : short
1 KΩ load, TA = 25˚C
0
0
60
UE
VAGC = 3 V
40
VAGC = 4 V
D
Conversion Gain, CG (dB)
60
Conversion Gain, CG (dB)
Conversion Gain, CG (dB)
80
60
VAGC = 4 V
40
VAGC = 3 V
20
VCC1 = 5 V, VCC2 = 5 V
G1A - G1B : open
1 KΩ load, TA = 25˚C
0
40
80
120
IF Frequency, fIF (MHz)
DI
0
160
VCC1 = 5 V, VCC2 = 9 V
G1A - G1B : open
1 KΩ load, TA = 25˚C
0
0
40
80
120
IF Frequency, fIF (MHz)
160
UPC2798GR
TYPICAL CHARACTERISTICS (by measurement circuit 4: Total Block, PRF = -60 dBm, fOSC = fRF + 10 MHz, POSC = -10 dBm)
CONVERSION GAIN vs.
INPUT FREQUENCY
CONVERSION GAIN vs.
INPUT FREQUENCY
80
80
60
VAGC = 3 V
40
20
VCC1 = 5 V
VCC2 = 5 V
1 KΩ load
G1A-G1B : short
TA = 25˚C
0
0
50
VAGC = 1 V
40
20
VCC1 = 5 V
VCC2 = 9 V
1 KΩ load
G1A-G1B : short
TA = 25˚C
0
100
150
200
250
0
Input Frequency, fRF (MHz)
50
100
150
200
250
IN
Input Frequency, fRF (MHz)
CONVERSION GAIN vs.
INPUT FREQUENCY
CONVERSION GAIN vs.
INPUT FREQUENCY
80
NT
80
VAGC = 4 V
60
40
VAGC = 3 V
VAGC = 1 V
20
SC
O
Conversion Gain, CG (dB)
60
UE
VAGC = 1 V
VAGC = 3 V
D
Conversion Gain, CG (dB)
VAGC = 4 V
VCC1 = 5 V, VCC2 = 5 V
G1A-G1B : open
1 KΩ load, TA = 25˚C
0
50
100
150
200
Input Frequency, fRF (MHz)
DI
0
250
Conversion Gain, CG (dB)
Conversion Gain, CG (dB)
VAGC = 4 V
VAGC = 4 V
60
VAGC = 3 V
40
VAGC = 1 V
20
VCC1 = 5 V, VCC2 = 9 V
G1A-G1B : open
1 KΩ load, TA = 25˚C
0
0
50
100
150
200
Input Frequency, fRF (MHz)
250
UPC2798GR
STANDARD CHARACTERISTICS (by measurement circuit 4: Total Block)
THIRD ORDER INTERMODULATION LEVEL AND
OUTPUT POWER vs. INPUT POWER
THIRD ORDER INTERMODULATION LEVEL AND
OUTPUT POWER vs. INPUT POWER
Output Power, POUT (dBm)
IM3
-40
VCC1 = 5 V
VCC2 = 5 V
f1 = 44 MHz
f2 = 46 MHz
fOSC = 55 MHz
POSC = -10 dBm
G1A–G1B: short
-60
-80
-50
-40
-30
-20
-10
-40
POUT
IM3
-40
VCC1 = 5 V
VCC2 = 5 V
f1 = 44 MHz
f2 = 46 MHz
fOSC = 55 MHz
POSC = -10 dBm
G1A–G1B: short
SC
O
-60
-40
-30
-20
-10
DI
Input Power, PIN (dBm)
-40
-30
IN
NT
0
-20
VCC1 = 5 V
VCC2 = 9 V
f1 = 44 MHz
f2 = 46 MHz
fOSC = 55 MHz
POSC = -10 dBm
G1A–G1B: open
-60
-20
-10
Input Power, PIN (dBm)
THIRD ORDER INTERMODULATION LEVEL AND
OUTPUT POWER vs. INPUT POWER
Output Power, POUT (dBm)
IM3
-80
-50
0
Input Power, PIN (dBm)
-80
-50
POUT
-20
UE
Output Power, POUT (dBm)
POUT
-20
D
0
0
0
0
UPC2798GR
STANDARD CHARACTERISTICS (by application circuit example : MIXER block)
NOISE FIGURE vs.
AGC VOLTAGE
CONVERSION GAIN vs.
INPUT FREQUENCY
Noise Figure, NF (dB)
VCC = 5.5 V
VCC = 4.5 V
fRF = 50 MHz
fIF = 10 MHz
PRF = -50 dBm
VAGC = 4 V
20
40
50
fRF = 50 MHZ
fIF = 10 MHZ
VCC = 4.5 V
VCC = 5.0 V
VCC = 5.5 V
DSB
0
60
1
2
3
4
5
AGC Voltage, VAGC (V)
IN
Input Frequency, fRF (MHz)
THIRD ORDER INTERMODULATION
LEVEL AND OUTPUT POWER vs.
INPUT POWER
CONVERSION GAIN vs.
AGC VOLTAGE
-10
30
fRF = 50 MHZ
fIF = 10 MHZ
PRF = -50 dBm
VCC = 4.5 V
VCC = 5.0 V
20
VCC = 5.5 V
NT
-20
10
0
SC
O
Conversion Gain, CG (dB)
10
0
30
-10
0
1
2
4
3
5
AGC Voltage, VAGC (V)
OSCILLATOR FREQUENCY vs.
TUNING VOLTAGE
70
60
DI
Oscillator Frequency, fOSC (MHz)
20
UE
VCC = 5.0 V
25
D
30
50
40
VCC = 5 V
30
0
5
10
15
Tuning Voltage, VTU (V)
20
Output Power, POUT (dBm)
Conversion Gain, CG (dB)
30
-30
POUT
-40
-50
IM3
-60
-70
VCC = 5 V
fRF1 = 45 MHZ
fRF2 = 46 MHZ
fOSC= 55 MHZ
VAGC= 0 V
-80
-90
-100
-60
-50
-40
-30
-20
-10
Input Power, PIN (dBm)
0
10
UPC2798GR
PIN FUNCTIONS
Pin
Name
Pin Voltage
Typ. (V)
1
AGC IN1
1.5
AGC IN2
RF input pins. Pins 1 and 2 are each base inputs
to a differential amplifier. In the case of a single-ended
input, bypass the unused pin to ground through a
capacitor.
1.5
Equivalent Circuit
4
AGC
Control
Reg
UE
2
Function and Explanation
D
Pin
No.
1
0~5
VCC1
5.0
5
OSC OUT
4.0
GND
0.0
Ground pin. This pin must be connected to system
ground. Form ground pattern as wide as possible to
minimize ground impedance.
7
OSC B2
2.4
Input pins for the internal oscillator. The internal
oscillator consists of a balanced amplifier.
4.6
9
OSC C2
4.6
DI
OSC C1
10
OSC B1
2.4
AGC
Control
3
4
Output pin for the internal oscillator. This pin may be
connected to the input of a PLL synthesizer.
6
8
4
Supply voltage pin for the downconverter block. This
pin should be connected with a bypass capacitor
(e.g., 1000 pF) to minimize ground impedance.
SC
O
4
Gain control pin of the mixer input amplifier. VAGC up
= gain up. It is recommended to use a 100k Ω voltage
divider at this pin.
IN
VAGC
NT
3
2
5
REG
7
8
4
9
10
Reg
Reg
UPC2798GR
PIN FUNCTIONS
Pin Voltage
Typ. (V)
( ) is value
at VCC = 9V
11
OUT2
2.5
(4.7)
Function and Explanation
Output pins for the video amplifier. With RL = 1k Ω,
the differential output voltage is 3 Vp-p. OUT1 and
INA are in phase. OUT2 and INB are in phase. In
the case of a single-ended output, bypass the unused
pin to ground through a capacitor.
OUT1
2.5
(4.7)
13
VCC2
5~9
Supply voltage pin for the video amplifier block. This
pin should be connected with a bypass capacitor
(e.g., 1000 pF) to minimize ground impedance.
14
INB
2.5
(4.1)
Input pins for the video amplifier. These pins have
high impedance. In the case of a single-ended input,
bypass the unused pin to ground through a capacitor.
16
G1B
1.7
(3.3)
NT
2.5
(4.1)
G1A
1.7
(3.3)
18
MIX OUT1
3.7
19
MIX OUT2
3.7
DI
17
20
GND
0.0
12
17
15
13
11
14
Gain control pins for the video amplifier. The gain
may be adjusted by varying the value of the resistor
between pins 16 and 17. Maximum gain = short;
Minimum gain = open.
SC
O
INA
13
IN
12
15
Equivalent Circuit
D
Pin
Name
UE
Pin
No.
REG
Output pins for the downconverter. These are emitter
follower outputs which feature low impedance. In the
case of a single-ended output, bypass the unused
pin to ground through a capacitor.
Ground pin. This pin must be connected to system
ground. Form ground pattern as wide as possible
to minimize ground impedance.
4
18
19
REG
16
UPC2798GR
MEASUREMENT CIRCUIT 1
AGC & MIXER BLOCK
10nF
100k
VAGC
220nF
VCC 1
1nF
OSC OUT
100k
220nF
10nF
10nF
20
2
19
3
18
4
17
5
16
6
13
9
12
IN
11
NT
MEASUREMENT CIRCUIT 2
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
DI
SC
O
VIDEO AMP BLOCK
RL = 1kΩ
50Ω
14
7
10
OSC IN
10nF
10nF
15
8
10nF
MIX OUT
D
AGC IN
1
UE
10nF
10
10nF
Signal
50Ω Generator
50Ω
10nF 220nF
Vcc 2
1nF
950Ω
50Ω
Spectrum
Analyzer
10nF
11
10nF
1kΩ
UPC2798GR
MEASUREMENT CIRCUIT 3
20
2
19
3
18
4
17
5
16
UE
1
D
VIDEO AMP BLOCK
RL = 50Ω
6
15
Signal
50Ω Generator
50Ω
10nF
14
7
10nF 220nF
Vcc 2
1nF
950Ω
50Ω
10nF
Spectrum
Analyzer
10nF
50Ω
13
8
9
12
10
NT
IN
11
MEASUREMENT CIRCUIT 4
TOTAL BLOCK
10nF
10nF
100k
20
2
19
SC
O
AGC IN
1
VAGC
220nF
VCC 1
1nF
OSC OUT
100k
220nF
10nF
10nF
10nF
DI
OSC IN
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
1k
1k
5pF
10nF
10nF
220nF
1nF
10nF
10nF
Vcc2
950Ω
50Ω
Spectrum
Analyzer
1kΩ
UPC2798GR
APPLICATION CIRCUIT EXAMPLE
AGC IN
100k
VAGC
220nF
VCC 1
1nF
OSC OUT
100k
220nF
10nF
10k
2
19
3
18
4
17
5
16
15
13
8
9
1.2 µ H
10pF
10k
1k
1k
5pF
10nF
10nF
14
7
10pF
20pF
Cv
20
6
1000pF
Vtu
1
UE
10nF
D
10nF
220nF
1nF
12
10
CV: ISV209
OUTLINE DIMENSIONS (Units in mm)
OUT 1
OUT 2
11
IN
1000pF
10nF
Vcc2
10nF
NT
INTERNAL BLOCK DIAGRAM
PACKAGE OUTLINE SSOP 20
20
11
NEC
C2798G
XXXXX
xxxxx = Lot/Date Code
SC
O
N
1
7.00 MAX
6.4±0.2
4.4±0.1
1.0±0.1
+0.10
0.15- 0.05
+0.10
0.22 - 0.05
1
20
AGC IN2
2
19
MIX OUT 2
VAGC
3
18
MIX OUT 1
VCC1
4
17
G1A
OSC OUT
5
16
G1B
GND
6
15
VAMP IN1
OSC B2
7
14
VAMP IN2
OSC C2
8
13
VCC2
OSC C2
9
12
OUT1
OSC B1
10
11
OUT2
10
1.5 ±0.1
1.8 MAX
AGC IN1
GND
0.5±0.2
0.65
0.575 MAX
All dimensions are typical unless specified otherwise.
DI
ORDERING INFORMATION
PART NUMBER
QUANTITY
UPC2798GR-E1-A
2500/Reel
Notes: Embossed tape, 12 mm wide.
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably
be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify CEL for all damages resulting from such improper use or sale.
EXCLUSIVE NORTH AMERICAN AGENT FOR
RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
CALIFORNIA EASTERN LABORATORIES • Headquarters • 4590 Patrick Henry Drive • Santa Clara, CA 95054-1817 • (408) 988-3500 • Telex 34-6393 • FAX (408) 988-0279
24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) • Internet: http://WWW.CEL.COM
6/99
DATA SUBJECT TO CHANGE WITHOUT NOTICE
4-248
UE
D
4590 Patrick Henry Drive
Santa Clara, CA 95054-1817
Telephone: (408) 919-2500
Facsimile: (408) 988-0279
Subject: Compliance with EU Directives
IN
CEL certifies, to its knowledge, that semiconductor and laser products detailed below are compliant
with the requirements of European Union (EU) Directive 2002/95/EC Restriction on Use of Hazardous
Substances in electrical and electronic equipment (RoHS) and the requirements of EU Directive
2003/11/EC Restriction on Penta and Octa BDE.
NT
CEL Pb-free products have the same base part number with a suffix added. The suffix –A indicates
that the device is Pb-free. The –AZ suffix is used to designate devices containing Pb which are
exempted from the requirement of RoHS directive (*). In all cases the devices have Pb-free terminals.
All devices with these suffixes meet the requirements of the RoHS directive.
This status is based on CEL’s understanding of the EU Directives and knowledge of the materials that
go into its products as of the date of disclosure of this information.
Concentration Limit per RoHS
(values are not yet fixed)
SC
O
Restricted Substance
per RoHS
Concentration contained
in CEL devices
-A
Not Detected
Lead (Pb)
< 1000 PPM
Mercury
< 1000 PPM
Not Detected
Cadmium
< 100 PPM
Not Detected
Hexavalent Chromium
< 1000 PPM
Not Detected
PBB
< 1000 PPM
Not Detected
PBDE
< 1000 PPM
Not Detected
-AZ
(*)
DI
If you should have any additional questions regarding our devices and compliance to environmental
standards, please do not hesitate to contact your local representative.
Important Information and Disclaimer: Information provided by CEL on its website or in other communications concerting the substance
content of its products represents knowledge and belief as of the date that it is provided. CEL bases its knowledge and belief on information
provided by third parties and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better
integrate information from third parties. CEL has taken and continues to take reasonable steps to provide representative and accurate
information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. CEL and CEL
suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for
release.
In no event shall CEL’s liability arising out of such information exceed the total purchase price of the CEL part(s) at issue sold by CEL to
customer on an annual basis.
See CEL Terms and Conditions for additional clarification of warranties and liability.
4-249