Si4122 ETC, Si4122 Datasheet - Page 8

• Manufacturer Part Number: Si4122
• Description: DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS
• Manufacturer: ETC

Table 5. RF and IF Synthesizer Characteristics
(V
S i4 13 3
8
Parameter
XIN Input Frequency
Reference Amplifier Sensitivity
Phase Detector Update Frequency
RF1 VCO Center Frequency Range
RF1 VCO Tuning Range
RF2 VCO Center Frequency Range
RF Tuning Range from f
IF VCO Center Frequency Range
IFOUT Tuning Range
IFOUT Tuning Range from f
RF1 VCO Pushing
RF2 VCO Pushing
IF VCO Pushing
RF1 VCO Pulling
RF2 VCO Pulling
IF VCO Pulling
RF1 Phase Noise
RF1 Integrated Phase Error
RF2 Phase Noise
RF2 Integrated Phase Error
IF Phase Noise
IF Integrated Phase Error
Notes:
DD
1. f = 200 kHz, RF1 = 1.6 GHz, RF2 = 1.2 GHz, IFOUT = 550 MHz, LPWR = 0, for all parameters unless otherwise noted.
2. Extended frequency operation only. V
3. From power up request (PWDNB or SENB during a write of 1 to bits PDIB and PDRB in Register 2) to RF and IF
4. From power down request (PWDNB , or SENB during a write of 0 to bits PDIB and PDRB in Register 2) to supply
= 2.7 to 3.6 V, T
RFLB pins. See Application Note 41 for more details on the Si4133 extended frequency operation.
synthesizers ready (settled to within 0.1 ppm frequency error).
current equal to I
1
A
= –40 to 85°C)
PWDN
CEN
2
.
CEN
DD
Symbol
V
f
f
f
f
3.0 V, MLP only, VCO Tuning Range fixed by directly shorting the RFLA and
CEN
CEN
CEN
REF
f
REF
Rev. 1.1
Extended frequency
phases, open loop
100 Hz to 100 kHz
10 Hz to 100 kHz
10 Hz to 100 kHz
Note: L
Note: L
VSWR = 2:1, all
Test Condition
100 kHz offset
1 MHz offset
1 MHz offset
with IFDIV
Open loop
f = f
operation
EXT
EXT
REF
/R
±10%
±10%
0.010
1850
62.5
Min
947
789
526
0.5
–5
–5
—
—
—
—
—
—
—
—
—
—
—
—
2
–132
–134
–117
Typ
500
400
300
900
300
100
0.9
0.7
0.4
—
—
—
—
—
—
—
—
—
—
+0.3 V
1720
2050
1429
1000
Max
V
952
1.0
26
—
—
—
—
—
—
—
—
—
—
—
—
5
5
DD
degrees
degrees
degrees
dBc/Hz
dBc/Hz
dBc/Hz
kHz/V
kHz/V
kHz/V
Unit
MHz
V
MHz
MHz
MHz
MHz
MHz
MHz
MHz
kHz
kHz
rms
rms
rms
%
%
P-P