7-2. IC PIN FUNCTION
Y IC101 RF AMP (TA2106N) / MA-C22 board
Pin No.Pin NameI/OFunction
1VCCN+5V power supply
2AGCADIRF system AGC AMP gain adjustment input (Not used)
3RFAD0IRF AMP gain adjustment input
4FNIIMain beam AMP input (Detector A,C)
5FPIIMain beam AMP input (Detector B,D)
6TPIISub beam AMP input (Detector F)
7TNIISub beam AMP input (Detector E)
8MDIIMonitor photodiode AMP input
9LDOOLaser diode AMP output
APC circuit ON/OFF signal, LDO pin control input, and bottom/peak detection frequency
10SELIswitching terminal *1
Tracking error balance control signal input controlled with temary PWM signal
11TEBI(PWM carrier = 88.2kHz)
122VROOReference voltage (2VREF) output (+4.2V)
13TENITracking error signal generating AMP inverted phase input
14TEOOTracking error signal generating AMP output
15SBADOSub beam addition signal output
16FEOOFocus error signal generating AMP output
17FENIFocus error signal generating AMP inverted phase input
18SEBIRFRP generating circuit mode selection input *2
19VROOReference voltage (VREF) output (+2.1V)
20RFRPOTrack count signal generating AMP output
21BTCIBottom detection constant adjustment terminal for RFCT signal generation
22RFCTORFRP signal center level output
23PKCIPeak detection constant adjustment terminal for RFCT signal generation
24RFRPINITrack count signal generating AMP input
25RFGOORF signal output
26AGCINIRF signal amplitude control AMP input
27RFOORF signal generation AMP output
28GNDNGround
29RFN2IRF signal generation AMP input
RF amplitude control signal input
30RFGCI
RFGC input voltage : 0.5 to 3.5V AGC AMP transfer gain : 0.8 to 1.7 times (typical)
*1
SELAPC circuitLDODetection frequency
LOFFConnected to VCC VWia 1kLow
HiZON Outputs control signalLow
HON Outputs control signalHigh
*2
SEBBottom detectionPeak detection
LONON
HOFFON
7-2 |
ACEC
