Alpine CDA-9812RB - IC Terminal Descriptions (Continued)

AVREF1 | 1 [Standard voltage npulieminal of DiA conveder. SSCS
SBUSRX | 1 [[SBUSrecewngtemina ——SSSCSC~—SCSCSCS
iSBUS TX [0 [IS BUS tansmitingtermnal SSCS
iS BUSFOUT | 0 |ISBUS frame signal outputtemnnal SSCS
MONITOR RXD
MONITOR TXD Status output terminal for RDS monitor (P/C).
Symbol
1
z
SB i
No connect terminal.
T-MUTE
MUTE signal output terminal to Main u-COM.
No connect terminal.
z
MARKET1
MARKET2
MARKET3
AUTO-ADJ
Area set up terminal.
w
Auto adjustment start signal terminal of FM/AM TUNER. (L:start)
a<y
No connect terminal.
GND terminal.
No connect terminal.
vss
Zz
.
< oO oO
Power supply terminal.
No connect terminal.
Audio signal detect terminal. (L:Blank
Zz
oO
PAUSE
DAVN
TEST/VPP
RDS SDA
RDS SCL
lIC SCL
1IC SDA
TUNER ON(NC)
FM/AM
(Li )
IC clock output terminal to TUNER-IC(TDA7511).
VO |IIC data input/output terminal to TUNER-IC(TDA751 1).
No connect terminal
FM/AM power supply switching terminal. (L:FM)
S © ie) ololo | NI] NIN alatalatal sa - RLRLALwWlwlw]o S “I 3) aly] = Ni = wlNi= N}A;o];o “I ne) O|G]aolNI oS
Zz
1?)
‘Aish
TMP91CP27U : 1C104 (DP23S2D0)
Symbol Terminal Description
VREFL | = |GND terminal of A/D converter.
NC(PULL-DOWN)
E2CE(PULL-DOWN)
NC(PULL-DOWN)
NC(PULL-DOWN)
QDATAF
/FIN
REQ
/FOUT
NC(PULL-DOWN)
TXD(PF_IS)
RXD(PF_IS)
Pull-down connect terminal.
REQ signal input terminal.
Es Synchronous clock signal output terminal to Main u-COM.
| 0 | IS-BUS FRAME signal output terminal.
IS-BUS FRAME signal input terminal.
Pull-down connect terminal.
PF-IS-BUS signal output terminal
PF-IS-BUS signal input terminal.
TO SCHEMATIC TO CONTENTS