Yamaha DSP-AX2 Service Manual page 38

DSP-AX2
IC503 : PM4007A (DSP P.C.B.)
AC-3 RF Demodulator
No. Name I/O
81 AVDD
82 CPIN I
83 CMIN I
84 AGND
85 TM4 I
86 VDD
87 DIN I
88 DOUT O
89 DOUTB O
90 C9M O
91 GND
92 WINGT O
93 SYST0 O
94 SYST1 O
95 ADST0 O
96 ADST1 O
97 TM5 I
98 BUNRI I
99 AGND
100 AVDD
37
+5V power supply for analog comparator
Analog comparator input, positive side (Non-reverse side: QPSK input)
Analog comparator input, negative side (reverse side)
Ground terminal for analog comparator (0V)
IC test terminal, normally connected to GND (or unconnected)
+5V power supply
IC test terminal, normally connected to GND (or unconnected)
Analog comparator result output
Analog comparator result reverse output
9.216MHz output, output divided into 2 at VIN (No.55 pin)
Ground terminal (0V)
Output for IC test
Output for IC test
Output for IC test
Output for IC test
Output for IC test
IC test terminal, normally connected to GND (or unconnected)
IC test terminal, normally connected to GND (or unconnected)
Ground terminal (0V) for 46.08MHz oscillator
+5V power supply for 46.08MHz oscillator
Function