54
Q901 : LC72722M
Pin Functions
Pin No. Pin name Function I/O Pin circuit
1 VREF Reference voltage output (Vdda/2) Output
2 MPXIN Baseband (multiplexed) signal input Input
5 FLOUT Subcarrier output (filter output) Output
6 CIN Subcarrier input (comparator input) Input
3 Vdda Analog system power supply (+5 V) Ñ Ñ
4 Vssa Analog system ground Ñ Ñ
12 XOUT Crystal oscillator output (4.332/8.664 MHz) Output
13 XIN Crystal oscillator input (external reference signal input)
7 T1 Test input (This pin must always be connected to ground.) Input
8T2
Test input (standby control)
0: Normal operation, 1: Standby state (crystal oscillator stopped)
9 T3 (RDCL) Test I/O (RDS clock output)
10 T4 (RDDA) Test I/O (RDS data output)
11 T5 (RSFT) Test I/O (soft-decision control data output)
16 T6 (ERROR/57K/TP/BE1)
Test I/O (error status output, regenerated carrier output,
I/O*
TP output, error block count output)
17 T7 (CORREC/ARI-ID/TA/BE0)
Test I/O (Error correction status output, SK detection output,
TA output, error block count output)
18 SYNC Block synchronization detection output
19 RDS-ID RDS detection output
Output
20 DO Data output
21 CL Clock input
22 DI Data input
Input
23 CE Chip enable
24 SYR Synchronization and RAM address reset (active high)
14 Vddd Digital system power supply (+5 V) Ñ Ñ
15 Vssd Digital system ground Ñ Ñ
Note: * Normally function as an output pin. Used as an I/O pin in test mode, which is not available to user applications.
Serial data interface (CCB)
