Si4122 ETC, Si4122 Datasheet - Page 27

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

Pin Descriptions: Si4133-BT
Pin Number(s) Name
1
2
3, 6, 9, 10
4, 5
7, 8
11
12
13
14
15
16, 18
17
19, 20
21
22
23
24
SCLK
SDATA
GNDR
RFLC, RFLD
RFLA, RFLB
RFOUT
VDDR
AUXOUT
PWDNB
XIN
GNDD
VDDD
IFLA, IFLB
GNDI
IFOUT
VDDI
SENB
RFOUT
Description
Serial clock input
Serial data input
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
Reference frequency amplifier input
Common ground for digital circuitry
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
V DDR
SDA TA
GNDR
GNDR
GNDR
GNDR
RFLD
RFLC
RFLB
RFLA
SCLK
10
11
12
1
2
3
4
5
6
7
8
9
Rev. 1.1
24
23
22
21
20
19
18
17
16
15
14
13
SENB
V DDI
IFOUT
GNDI
IFLB
IFLA
GNDD
V DDD
GNDD
XIN
PWDNB
A UXOUT
Si4133
27