Service manual
52
DV-NC55U/C/M
Pin No. Terminal name I/O Operation function
Terminal DC Voltage(TYP.)
Remarks
1 GND – GND terminal. –
2 P2TP I TE+input (CD) VrA
3 P2TN I TE–input (CD) VrA
4 LDO2 O Drive ouput 2 –
5 MDI2 I Monitor input 2 –
6 VrD O Digital VREF – Vdd/2 output (1.65V)
7 Vrfil – Filter capacity for reference –
8 Vdd I Power terminal – 3.3V is connected.
9 DPAC – DPD AC combination capacity 1 –
10 DPBD – DPD AC combination capacity 2 –
11 DPD1 – DPD integral capacity 1 –
12 DPD2 – DPD integral capacity 2 –
13 SCB I Control line (Bit clock) 2.2[V]
14 SCL I Control line (Latch signal) 2.2[V]
15 SCD I Control line (Sirial Data) 2.2[V]
16 VRCK I Reference clock input 2.3[V] When frequency is increased, the
filters excepting the servo LPF are
shifted to high frequency side.
17 VCKF – Capacity for VRCK time constant –
adjustment
18 VccP – Power terminal –
19 LVL O Servo addition output VrD/2
20 TEO O TE output VrD
21 FEO O FE output VrD
22 DFTN I DPD difect – Low DPD output: Mute
23 VccS – Power terminal (servo) –
24 NC – – – Used in the open state.
25 RPZ O RF ripple output 2 VrD
26 RPO O RF ripple output 1 VrD/2
27 RPB – RF ripple bottom –
28 RPP – RF ripple peak –
29 RFOn O Equivalent RF output 1.65[V] DC voltage varies by RFS.
(Differential output)
30 RFOp O Equivalent RF output 1.65[V] DC voltage varies by RFS.
(Differential output)
31 VccR – Power terminal (RF) –
32 RFS I RF slice level adjustment –
33 TEB I TE balance VrD When TEB is raised, the gain on the
TP side and the delay amount on the
A+C side are increased.
Adjusting range: GND - Vdd
34 FEB I FE balance VrD When FEB is raised, the gain on the
A+C (FP) side is increased.
Adjusting range: GND - Vdd
35 DPDB I Pit depth adjustment VrD When DPDB is raised, the delay
amount on the A•B side is increased.
Adjusting range: GND - Vdd
36 Vcc2 – Power terminal –
37 NC – – – Used in the open state.
38 NC – – – Used in the open state.
39 GND2 – GND terminal. –
40 TCC1 I Time constant adjustment –
41 RFDC – DC feedback capacity –
42 VrA O Analog VREF 2.1[V]
43 EQB I Boost adjustment VrD
When EQB is raised, the boost increases.
Adjusting range: GND - Vdd
11. IC FUNCTION LIST
11-1. IC301 TA1323F RF PROCESSOR