Si4122 ETC, Si4122 Datasheet - Page 29

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

Pin Descriptions: Si4133-BM
Pin Number(s) Name
1, 4, 7-9, 28
2, 3
5,6
10
11
12
13
14, 16, 18
15
17
19, 20
21, 22
23
24
25
26
27
GNDR
RFLC, RFLD
RFLA, RFLB
RFOUT
VDDR
AUXOUT
PWDNB
GNDD
XIN
VDDD
IFLA, IFLB
GNDI
IFOUT
VDDI
SENB
SCLK
SDATA
GNDR
GNDR
GNDR
RFLD
RFLC
RFLB
RFLA
Description
Common ground for RF analog circuitry
Pins for inductor connection to RF2 VCO
Pins for inductor connection to RF1 VCO
Radio frequency (RF) output of the selected RF VCO
Supply voltage for the RF analog circuitry
Auxiliary output
Power down input pin
Common ground for digital circuitry
Reference frequency amplifier input
Supply voltage for digital circuitry
Pins for inductor connection to IF VCO
Common ground for IF analog circuitry
Intermediate frequency (IF) output of the IF VCO
Supply voltage for IF analog circuitry
Enable serial port input
Serial clock input
Serial data input
1
2
3
4
5
6
7
28
8
27
9
26
10
Rev. 1.1
25
11
24
12
23
13
22
14
21
20
19
18
17
16
15
GNDI
IFLB
IFLA
GNDD
V DDD
GNDD
XIN
Si4133
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