MDS-JE770
6-14. IC PIN FUNCTION DESCRIPTION
• IC101 CXA2523AR RF Amplifier (BD BOARD)
Pin No. | Pin Name | I/O |
| Description |
|
|
|
| |
1 | I | I | ||
|
|
|
| |
2 | J | I | ||
|
|
|
| |
3 | VC | O | Middle point voltage (+1.5V) generation output | |
|
|
|
| |
4 - 9 | A to F | I | Signal input from the optical | |
|
|
|
|
|
10 | PD | I | Light amount monitor input |
|
|
|
|
|
|
11 | APC | O | Laser APC output |
|
|
|
|
| |
12 | APCREF | I | Reference voltage input for setting laser power | |
|
|
|
|
|
13 | GND | — | Ground |
|
|
|
|
| |
14 | TEMPI | I | Temperature sensor connection | |
|
|
|
| |
15 | TEMPR | O | Reference voltage output for the temperature sensor | |
|
|
|
| |
16 | SWDT | I | Serial data input from the CXD2662R | |
|
|
|
| |
17 | SCLK | I | Serial clock input from the CXD2662R | |
|
|
|
| |
18 | XLAT | I | Latch signal input from the CXD2662R “L”: Latch | |
|
|
|
| |
19 | XSTBY | I | Stand by signal input “L”: Stand by | |
|
|
|
| |
20 | F0CNT | I | Center frequency control voltage input of BPF22, BPF3T, EQ from the CXD2662R | |
|
|
|
| |
21 | VREF | O | Reference voltage output (Not used) | |
|
|
|
| |
22 | EQADJ | I | Center frequency setting pin for the internal circuit EQ | |
|
|
|
| |
23 | 3TADJ | I | Center frequency setting pin for the internal circuit BPF3T | |
|
|
|
|
|
24 | Vcc | I | +3V power supply |
|
|
|
|
| |
25 | WBLADJ | I | Center frequency setting pin for the internal circuit BPF22 | |
|
|
|
| |
26 | TE | O | Tracking error signal output to the CXD2662R | |
|
|
|
| |
27 | CSLED | — | External capacitor connection pin for the sled error signal LPF | |
|
|
|
| |
28 | SE | O | Sled error signal output to the CXD2662R | |
|
|
|
|
|
29 | ADFM | O | FM signal output of ADIP |
|
|
|
|
|
|
30 | ADIN | I | ADIP signal comparator input | ADFM is connected with AC coupling |
|
|
|
| |
31 | ADAGC | — | External capacitor connection pin for AGC of ADIP | |
|
|
|
| |
32 | ADFG | O | ADIP duplex signal output to the CXD2662R | |
|
|
|
| |
33 | AUX | O | I3 signal/temperature signal output to the CXD2662R | |
|
|
|
| |
34 | FE | O | Focus error signal output to the CXD2662R | |
|
|
|
| |
35 | ABCD | O | Light amount signal output to the CXD2662R | |
|
|
|
| |
36 | BOTM | O | RF/ABCD bottom hold signal output to the CXD2662R | |
|
|
|
| |
37 | PEAK | O | RF/ABCD peak hold signal output to the CXD2662R | |
|
|
|
| |
38 | RF | O | RF equalizer output to the CXD2662R | |
|
|
|
| |
39 | RFAGC | — | External capacitor connection pin for the RF AGC circuit | |
|
|
|
|
|
40 | AGCI | I | Input to the RF AGC circuit | The RF amplifier output is input with AC coupling |
|
|
|
| |
41 | COMPO | O | User comparator output (Not used) | |
|
|
|
| |
42 | COMPP | I | User comparator input (Fixed at “L”) | |
|
|
|
| |
43 | ADDC | — | External capacitor pin for cutting the low band of the ADIP amplifier | |
|
|
|
| |
44 | OPO | O | User operation amplifier output (Not used) | |
45 | OPN | I | User operation amplifier inversion input (Fixed at “L”) | |
|
|
|
|
|
46 | RFO | O | RF amplifier output |
|
|
|
|
| |
47 | MORFI | I | Groove RF signal is input with AC coupling | |
|
|
|
|
|
48 | MORFO | O | Groove RF signal output |
|
|
|
|
|
|
•Abbreviation
APC: Auto Power Control
AGC: Auto Gain Control
52