CRO6835Z
9939 Via Pasar • San Diego, CA 92126
TEL (858) 621-2700 FAX (858) 621-2722
VOLTAGE CONTROLLED OSCILLATOR
Rev A1
PHASE NOISE (1 Hz BW, typical)
FEATURES
• Frequency Range: 6834 - 6835 MHz
• Tuning Voltage: 0.5-4.5 Vdc
• VCO-24H - Style Package
APPLICATIONS
• Microwave Radios
• Satellite Communications
• Direct Broadcast
£(f) (dBc/Hz)
-60
-70
-80
-90
-100
-110
-120
-130
1000
10000
100000
OFFSET (Hz)
VALUE
UNITS
6834 - 6835
MHz
-103
dBc/Hz
-20
0.5-4.5
18
dBc
Vdc
MHz/V
Power Output
3±2
dBm
Load Impedance
50
Ω
Input Capacitance (max.)
50
pF
Pushing
<1
MHz/V
Pulling (14 dB Return Loss, Any Phase)
<1
MHz
Operating Temperature Range
-40 to 85
°C
Package Style
VCO-24H
PERFORMANCE SPECIFICATIONS
Oscillation Frequency Range
Phase Noise @ 10 kHz offset (1 Hz BW, typ.)
Harmonic Suppression (2nd, typ.)
Tuning Voltage
Tuning Sensitivity (avg.)
POWER SUPPLY REQUIREMENTS
Supply Voltage (Vcc, nom.)
Supply Current (Icc, typ.)
5
Vdc
130
mA
All specifications are typical unless otherwise noted and subject to change without notice.
APPLICATION NOTES
• AN-100/1 : Mounting and Grounding of VCOs
• AN-102 : Proper Output Loading of VCOs
• AN-107 : How to Solder Z-COMM VCOs
NOTES:
Fundamental Rejection (typ.): -30 dBc
Phase Noise @ 100 kHz offset (1 Hz BW, typ.): -125 dBc/Hz
© Z-Communications, Inc.
Page 1
All rights reserved
LOW COST - HIGH PERFORMANCE
VOLTAGE CONTROLLED OSCILLATOR
CRO6835Z
PAGE 2
TUNING CURVE, typ.
FREQUENCY (MHz)
6900
6880
6860
-40
°c
°c
°c
25
°c
85
6840
25
6820
6800
6780
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
TUNING VOLTAGE (Vdc)
POWER CURVE, typ.
POWER OUTPUT (dBm)
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
6796
6804
6810
6818
6825
6833
6842
6851
6862
6872
FREQUENCY (MHz)
1.
SIDE VIEW
.032
0.220
.455
.580
.605
.370
.285
.200
.115
-.026
.000
PHYSICAL DIMENSIONS
-.025
24 23 22 21 20
2.
.000
PIN 1
.153
.238
.323
.408
.493
1
19
2
18
3
.578
17
TOP
5
SEE DETAIL A
.663
4.
5.
16
4
BOTTOM
3.
15
6
14
7
13
The inside radius of all 24 half holes at the perimeter of
the board are plated to provide a surface for the
attachment of the VCO Module to the PCB. 21 pads are
for grounding.
The surface of the shield is tin-plated and may be
soldered to. The shield’s base metal is cold-rolled steel.
The ground plane on the bottom side is ground and
attaches to a ground track on the top side of the board
as well as to the shield.
Unless otherwise noted all dimensions are in inches.
Unless otherwise noted all tolerances are as follows:
.xxx = ± .010.
P1 RF OUTPUT
.816
P13 VCC
.841
8
9 10 11 12
P17 Vtune
SEE DETAIL B
.055
.015
.030
DETAIL B (TYP)
DETAIL A
© Z-Communications, Inc.
TABS RANGE:
SEE NOTE 5
(4 PLACES)
(8 PLACES)
Page 2
Printed in the U.S.A.