STW82102B Datasheet, PDF (9/67 Pages) STMicroelectronics – RF down converter with embedded integer-N synthesizer

STW82102B
Pin description
Table 2. Pin list
Pin No
Name
1 VDD_DAC
2 REXT_DAC
3 VDD_DIV
4 VDD_VCO
5 EXTVCO_INN
6 EXTVCO_INP
7 EXT_PD
8 ADD2
9 ADD1
10 ADD0
11 VDD_IO
12 VDD_PSCBUF
13 NC
14 NC
15 VDD_OUTBUF
16 OUTBUFN
17 OUTBUFP
18 VCTRL
19 ICP
20 REXT_CP
21 VDD_CP
22 LOCK_DET
23 REF_CLK
24 VDD_PLL
25 DBUS_SEL
26 VDD_DIG
27 SDA/DATA
28 SCL/CLK
29 LOAD
30 NC
31 IF_OUTN
Description
Observation
DAC power supply
Vsupply analog1= 3.3 V
External resistance connection for DAC
-
Divider by 2 power supply
Vsupply analog1= 3.3 V
VCOs and External VCO Buffer power supply Vsupply analog1= 3.3 V
External VCO (LO) negative input
Diversity Slave Mode and External
VCO Modes; otherwise it must be
connected to GND
External VCO (LO) positive input
Diversity Slave Mode and External
VCO Modes; otherwise it must be
connected to GND
Hardware power down:
‘0’ device ON; ‘1’ device OFF
I²CBUS address select pin
I²CBUS address select pin
I²CBUS address select pin
CMOS Input
CMOS Input
CMOS Input
CMOS Input
Digital IO power supply
Vsupply digital = 3.3 V
Prescaler input buffer power supply
Vsupply analog1= 3.3 V
Not connected
-
Not connected
-
Power supply for LO buffer
Vsupply analog1=3.3 V
LO Output buffer negative output
Open collector @3.3 V
LO Output buffer positive output
Open collector @ 3.3 V
Control voltage for VCOs
-
PLL charge pump output
-
External resistance connection for PLL charge
pump current
-
Power supply for charge pump
Vsupply analog1= 3.3 V
Lock detector
CMOS Output
Reference frequency input
-
PLL digital power supply
Vsupply analog1= 3.3 V
Digital Bus Interface select
CMOS Input
Power supply for digital bus interface
I²CBUS /SPI data line
I²CBUS /SPI clock line
Vsupply digital = 3.3 V
CMOS Bidir Schmitt triggered
CMOS Input Schmitt triggered
SPI load line
CMOS Input Schmitt triggered
Not connected
IF amplifier negative output
-
Open collector @ 5 V⁽¹⁾
Doc ID 018516 Rev 2
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