IC Data Sheets
8.
8.
IC Data Sheets
This chapter shows the internal block diagrams and pin
configurations of ICs that are drawn as “black boxes” in the
electrical diagrams (with the exception of “memory” and “logic”
ICs).
8.1
Diagram
, Si2156 (U18)
Figure 8-1 Internal block diagram and pin configuration
19420_
3
00_1
3
0
3
14.ep
s
1
3
0
3
14
Block diagram
Pinning information
GND_PAD
17
27
28
29
30
18
19
31
32
20
RF_IN
XOUT
VDD_L
RF_S
HLD
RF_S
HLD
RF_IP
VD
D_
H
XT
AL
_I
16
15
21
22
23
24
BCLK
RSTB
6
7
8
5
DLIF_P
DLIF_N
ALIF_P
VD
D_
H
13
14
12
11
9
10
1
2
3
4
25
26
GND
SDA
GN
D
VDD_D
SCL
VD
D_
S
VDD_IO
AL
IF
_A
GC
AD
DR
DL
IF
_A
GC
ALIF_N
VDD_H
GPIO1
INTB/GPIO2
XT
AL
_O
GND
GND
GND
DSP
FILTER
ATV
DEMOD
I
ADC
Q
ADC
0 / 90
LOW-IF
FREQ
SYNTH
RF
AGC
LDO
IF
AGC
OU
TP
UT
INTERFACE
XOSC
XTA
L_I
PGA
PGA
CONTROL INTERF
ACE
XTA
L_O
XOUT
BCLK
AGC
Si2156
RF_IN
RF_IP
ANTENNA
INPUT
Balun
DTV
DEMOD
AV
SoC
GP
IO
RSTB
ADDR
SCL
SDA
INTB
DLIF
DSP
FILTER
ATV
DEMOD
AGC
ALIF
3.3 V
1.8 V