TC94A92FG Terminal Function
Pin
No.
Symbol I/O Description Default Remarks
1 VCoi
O
3AI/F
DSP VCO - EFM and PLCK Phase difference
signal output pin.
(DSP VCO control voltage inputr pin.)
O 3 state output
2 RVDD3 -
CD-DSP-Power supply for 3.3V RF
amplier core and PLL circuit
-
3 SLCo
O
3AI/F
EFM slice level output pin O
Connect capacitor according with se
rvo frequency band.
4 RFi
I
3AI/F
RF signal input pin I Selectable Zin 20/10 kΩ
5 RFRPi
I
3AI/F
RF ripple signal input pin I
6 RFEQo
O
3AI/F
RF equalizer circuit output pin. O
Connect to RFRPi by 0.1uF, to RFi by
4700pF.
7 DCoFC
O
3AI/F
RFEQo offset compensation LPF output O Connect to Vro by more than 0.015uF
8 AGCi
I
3AI/F
RF signal AGC amplier input pin I
9 RFo
O
3AI/F
RF signal generation amplier output pin O
10 RVSS3 -
Grounding pin for 3.3 RF amplier core and
PLL circuit
-
11 FNI2
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode C.
I
12 FNI1
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode A.
I
13 FPI2
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode D.
I
14 FPI1
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode B.
I
15 TPi
I
3AI/F
Sub beam signal input pin.
To be connected to PIN diode F.
I
16 TNi
I
3AI/F
Sub beam signal input pin.
To be connected to PIN diode E.
I
17 VRo
O
3AI/F
1.65 V reference voltage output pin. O
Connected to PVREF,
And connect to GNG by
0.1uF+100uF.
18 AVSS3 - Grounding pin for 3.3V CD analog circuits. -
19 MDi
I
3AI/F
Monitor photodiode amplier input pin. I Reference Voltage=178mVtyp.
20 LDo
O
3AI/F
Laser diode amplier output pin O
21 FSMoNiT
O
3AI/F
Focus Error signal / Sub beam add signal
output pin(monitor pin/GND)
O
22 RFZi
I
3AI/F
RF ripple zero-cross signal Input pin I
23 RFRP
O
3AI/F
RF ripple signal output pin. O
24 TEi
O
3AI/F
Tracking error signal output pin. O
Bulit-in serises R=500Ω.
Connect to VRo by
capacitor.
25 AVDD3 - Power supply pin for 3.3 V CD analog circuits. -
26 FOo
O
3AI/F
Focus servo equalizer output pin. O Bulit-in serises R=3.3 kΩ
27 TRo
O
3AI/F
Tracking servo equalizer output pin. O Bulit-in output R=3.3 kΩ
28 VSS-3 -
Grounding pin for 1.5V Decoder-DSP
CD circuit
-
29 FMo
O
3AI/F
Feed servo equalizer output pin. O Bulit-in output R=3.3 kΩ
30 FMoS
O
3AI/F
Feed servo equalizer output pin.
(Stepper motor application)
O Bulit-in output R=3.3 kΩ
31 DMo
O
3AI/F
Disc servo equalizer output pin O Bulit-in output R=3.3 kΩ
32 VDD1-3
I/O
3I/F
Power supply pin for 1.5V Decoder-DSP
/CD circuit
-
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