Kenwood DVR-6100, Руководство по обслуживанию

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DVR-6100/6100K
9
CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description
1 LRCIN I
DAC sample rate clock input : PCM input mode
Right channel DSD bitstream input : DSD input mode
2 DIN I
Serial audio data input : PCM input mode
Left channel DSD bitstream input : DSD input mode
3 BCKIN I Audio data bit clock input.
4 MCLK I Master clock input.
5 ZERO O Infinite zero detect flag.
6 DGND - Digital ground supply.
7 DVDD - Digital positive supply.
8 VOUTR O Right channel DAC output.
9 AGND - Analog ground supply.
10 AVDD - Analog positive supply.
11 VOUTL O Left channel DAC output.
12 VMID O Mid rail decoupling point.
13 VREFN - DAC negative reference.
14 VREFP - DAC positive reference.
15 CSBIWL I
Software mode : 3-wire serial control chip select
Hardware mode : Input word length
16 MODE I Control mode selection.
17 MUTEB - Mute control. "L" = Mute on, "H" = Mute off
18 SDIDEM -
Software mode : 3 or 2-wire serial control data input
Hardware mode : De-Emphasis select
19 SCKDSD I
Software mode : 3 or 2-wire serial control clock input
Hardware mode : DSD bitstream operation select
20 LAT12S I
Software mode : 3-wire serial control load input
Hardware mode : Input data format selection
Pin No. Pin Name I/O Description
38 CLK I
The system clock input. all other inputs are registered to the SDRAM on
the rising edge of CLK.
37 CKE -
Controls internal clock signal and when deactivated, the SDRAM will be one
of the states among power down, suspend or self refresh.
19 CS - Enables or disables all inputs except CLK, CKE, and DQM.
20,21 BA0,BA1 -
Selects bank to be activated during RAS activity.
Selects bank to be read/written during CAS activity.
22~26
A0~A11 -
Row address : RA0~RA11, Column address : CA0~CA7
29~35 Auto-precharge flag : A10
16,17,18 WE,CAS,RAS - WE, CAS and RAS define the operation.
15,39 LDQM,UDQM I/O Controls output buffers in read mode and masks input data in write mode.
2,4,5,7,8,10
11,13,42,44
DQ0~DQ15 I/O Multiplexed data input/output pin.
45,47,48,50
51,53
1,3,9,14,27
VCC/VCC Q - Power supply for internal circuits and input buffers.
43,49
6,12,28,41,
VSS/VSS Q - Ground terminal.
46,52,54
36,40 NC - Unused.
3. Pin Description of IC’s
3-1 64 Bit SDRAM : HY57V641620HGT (DVD Part IC63)
3-2 24-bit, 192kHz Stereo DAC : WM8728 (DVD Part IC64)