18
AVR-2105/885 / AVC-1890
TC94A27UG (IC201T, 202T)
Function
Pin
No.
Pin Name I/O
* For latch-up countermeasure, perform each power supply ON/OFF in the same timing.
28 XOUT O X’tal osc. connecting output terminal
29 XIN I X’tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz)
30 DVDD — Digital power
31 DGND — Digital GND
32 EMPHA/UO I/O Emphasis information/U-data output/Chip address setting terminal
33 AUDIO/VO I/O Non-PCM detect/V-flag output/ Chip address setting terminal
34 CKST I/O Clock switch transition period output/Demodulation master or slave function switching terminal
35 INT I/O Interrupt output for µcom (Interrupt factor selectable)/Modulation or general I/O switching terminal
36 RERR O PLL lock error, data error flag output
37 DO O µcom I/F, read out data output terminal (3-state)
38 DI I µcom I/F, write data input terminal
39 CE I µcom I/F, chip enable input terminal
40 CL I µcom I/F, clock input terminal
41 XMODE I System reset input terminal
42 DGND — Digital GND
43 DVDD — Digital power
44 TMCK/PIO0 I/O 256fs system clock input for modulation/General I/O in/output terminal
45 TBCK/PIO1 I/O 64fs bit clock input for modulation/General I/O in/output terminal
46 TLRCK/PIO2 I/O fs clock input for modulation/General I/O in/output terminal
47 TDATA/PIO3 I/O Serial audio data input for modulation/General I/O in/output terminal
48 TXO/PIOEN O/I Modulation data output/ General I/O enable input terminal
NC
L‑TVR‑REFB
L‑TVR‑1NB
L‑MVR‑1NB
L‑MVR‑OUTB
L‑TVR‑OUTB
L‑MVR‑AGNDB2
L‑MVR‑AGNDARE
L‑MVR‑AGNDARE
L‑MVR‑AGNDA2
NC
L‑MVR‑AGNDB1
NC
12
1110
9
87654321
13
14
15
16
17
19
18
20
21
22
44
43
42
41
40
39
37
38
36
35
34
23
24
25
26
27
30
29
28
31
3233
R‑TVR‑REFB
R‑TVR‑1NB
R‑MVR‑1NB
R‑MVR‑OUTB
R‑TVR‑OUTB
R‑MVR‑AGNDB2
R‑MVR‑AGNDA1
R‑MVR‑AGNDA2
R‑MVR‑OUTA
NC
R‑MVR‑AGNDB1
L‑MVR‑INA
R‑MVR‑INA
L‑TVR‑INA
L‑TVR‑OUTA
L‑TVR‑REPA
R‑TVR‑REF
R‑TVR‑INA
R‑TVR‑OUTA
NC
CS1
VDD
TEST
GND
MUTEM
CS2
CK
MUTE
VSS
STB
DATA
LatchLatch
Levelshiftcircuit
Test&
autoclearcircuit
Timing
generating
circuit
Latch
Latch
LatchLatch Latch
Latch
Latch Latch
Latch
Decodercircuit
24bitshiftregister
Decodercircuit
Latch
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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