XL-DK257N
8 – 4
IC1 VHITC94A70FG2: CD MP3 DECODER (2/4)
Pin Description
Pin
No.
Symbol Input / Output Description Default Remarks
1 AVSS3 - Grounding pin for 3.3V CD analog circuits. -
2 RFZi Input 3AI/F Input pin for RF ripple zero-cross signal. Input Connect to RFRP 0.033uF
3 RFRP Output 3AI/F RF ripple signal output pin. Output
Monitor pin for the signal.
4 SBAD/RFDC Output 3AI/F
Sub beam addition signal or RFDC (Hologram PUH
RF peak detection signal) signal output pin.
Output
5 FEi Output 3AI/F Focus error signal input pin. Output
6 TEi Output 3AI/F Tracking error signal input pin. Output
7 TEZi Input 3AI/F Tracking error signal zero-cross input pin. Input Connect to TEL by 0.033uF
8 AVDD3 - Power supply pin for 3.3 V CD analog circuits. -
9 Foo Output 3AI/F Focus servo equalizer output pin. Output
Built-in series resister 3.3kΩ
10 TRo Output 3AI/F Tracking servo equalizer output pin. Output
11 VREF - Reference voltage pin for analog circuits (1.65V). -
Connect to VRO and PVREF.
Connect 0.1uF
12 FMo Output 3AI/F Feed servo equalizer output pin. Output Built-in series resister 3.3kΩ
3-state output (AVDD3,
AVSS3, VREF)
13 DMo Output 3AI/F Disc servo equalizer output pin. Output
14 VSSP3 - Grounding pin for 3.3V DSP VCO circuits. -
15 VCOi Output PD output for VCO (control voltage input for VCO). Output Three-state output
16 VDDP3 - Power supply pin for 3.3V DSP VCO circuit. -
17 VDD1 - Power supply pin for 1.5V digital VCO circuit. -
18 VSS - Grounding pin for 1.5V digital circuits. -
19 FGiN Input 3I/F FG signal input pin for CAV.CLV:L:, CAV FG input. Input Analog Input
20 ioO(/Hso)
Input / Output
3I/F
Gerenal input /output ports-0 (CD)
(Playback speed mode flag output Pin.)
Input Schmitt input COMOS PORT
21 io1
Input / Output
3I/F
Grounding pin for 1.5V digital circuits. Input Schmitt input COMOS PORT
22 VVSS3 -
Grounding pin for 3.3V digital system circuits oscillator
circuit.
-
23 VXSS3 Input 3AI/F
Input pin for syetem clock oscillator circuit (External
Rfb=1MΩ).
Input X’tal
24 Xo Output 3AI/F Output pin for system clock oscillator circuit. Output X’tal
25 XVDD3 -
Power supply pin for 3.3 v sy stearm clock oscillator
circuit.
-
26 DVSS3 - Grounding pin for 3.3V digital circuits. -
27 Ro Output 3AI/F R channel audio output pin of Audio DAC. Output
No capacitor required to DVR
pin when built-in audio DAC is
not in use, however , connect
3.3V to DVDD3 and GND to
DVSS3.
28 DVDD3 - Power supply pin for 3.3V Audio DAC circuit. -
29 DVR - Reference voltage pin for Audio DAC. -
30 Lo Output 3AI/F L channel audio output pin of Audio DAC. Output
31 DVSS3 - Grounding pin for 3.3V Audio DAC circuit. -
32 VDDT3 - Power supply pin for 3.3 V digital I/O circuit. - For CD and DSP I/O
33 VSS - Grounding pin for 3.3V digital circuit. - -
34 VDD1 - Power supply pin for 1.5V digital circuit. - -
35 VDDM1 - Power supply pin for 1.5V 1Mbit SRAM. - -
36 SRAMSTB Input 3I/F 1Mbit SRAM stand-by pin. Input Schmitt input
37 /RST Input 3I/F Reset signal input pin. Input Schmitt input
38 BUS0
Input / Output
3I/F
Data input/output pin -0 for microcontroller interface. Input Schmitt input CMOS PORT
39 BUS1
Input / Output
3I/F
Data input/output pin -1 for microcontroller interface. Input Schmitt input CMOS PORT
40 BUS2(So)
Input / Output
3I/F
Data input/output pin -2 for microcontroller interface
(Serial output).
Input Schmitt input CMOS PORT
41 BUS3(Si)
Input / Output
3I/F
Data input/output pin -3 for microcontroller interface
(Serial output).
Input Schmitt input CMOS PORT
42 BUCK(CLK) Input 3I/F
Clock input pin for the microcontroller interface.
(Clock input for Serial communication interface)
Input Schmitt input
43 /CCE Input 3I/F
Chip enable signal input pin for microcontroller
interface.
Input Schmitt input
44 TEST Input 3I/F
Setting pin for LSI test mode.
(Connect to GND in normal operation)
Input Schmitt input
45 IRQ Input 3I/F
DSP interruption pin (Pull down by 100kΩ when not in
use).
Input Schmitt input
46 AoUT3(Po4) Output 3I/F Audio data output pin -3 (DSP general output port -4). Output CMOS PORT
47 AoUT2(Po5) Output 3I/F Audio data output pin -2 (DSP general output port -5). Output CMOS PORT
48 Pio0
Input / Output
3I/F
DSP general input/output port -0. Input Schmitt input CMOS PORT
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