HD155121F Datasheet, PDF (4/57 Pages) Hitachi Semiconductor – RF Transceiver IC for GSM and PCN Dual band cellular systems

HD155121F
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Pin Name
MIX1INB1
MIX1IN1
RFOUT
RFIN1
RFIN2
VCCPLL
GNDPLL
VCOIN2
VCOIN1
VCCCOMP
PLLOUT
ICURAD
QINB
QIN
IINB
IIN
MODLB
VCCIQ
GNDIQ
QOUTB
QOUT
IOUTB
IOUT
MIX2OB
MIX2O
CLK
SDATA
LE
IFINB
IFIN
GNDIF
VCCIF
IFVCOI
IFVCOO
Description
Negative input for Mixer1 (GSM)
Positive input for Mixer1 (GSM)
Bias for the collector of LNA transistor
Bias for the base of LNA transistor (GSM)
Bias for the base of LNA transistor (PCN)
V_CC for OPLL
GND for OPLL
TxVCO signal input (PCN)
TxVCO signal input (GSM)
V_CC for phase comparator
Current output to control and modulate the TxVCO
Phase comparator output current setting
Negative input of Q signal for modulator
Positive input of Q signal for modulator
Negative input of I signal for modulator
Positive input of I signal for modulator
V_CC for modulator load bias
V_CC for IQ modulator and demodulator
GND for IQ modulator and demodulator
Negative output of Q signal for modulator
Positive output of Q signal for modulator
Negative output of I signal for modulator
Positive output of I signal for modulator
Negative output for Mixer2
Positive output for Mixer2
Clock for serial data
Serial data for Gain control
Load enable for serial data
Negative input for Mixer2
Positive input for Mixer2
GND for Mixer2 and PGA
V_CC for Mixer2 and PGA
Base of IFVCO transistor
Emitter of IFVCO transistor
4