Marantz SR8001 Service Manual page 126

IC41 : CS4382A-CQ
Pin Name #
MUTEC1 41
Mute Control (Output) - The Mute Control pins go high during power-up initialization, reset, muting,
MUTEC234 22
power-down or if the master clock to left/right clock frequency ratio is incorrect. These pins are intended
to be used as a control for external mute circuits to prevent the clicks and pops that can occur in any sin-
gle supply system. The use of external mute circuits are not mandatory but may be desired for designs
requiring the absolute minimum in extraneous clicks and pops.
AOUTA1 +,- 39, 40 Differential Analog Output (Output) - The full scale differential analog output level is specified in the
AOUTB1 +,- 38, 37 Analog Characteristics specification table.
AOUTA2 +,- 35, 36
AOUTB2 +,- 34, 33
AOUTA3 +,- 29, 30
AOUTB3 +,- 28, 27
AOUTA4 +,- 25, 26
AOUTB4 +,- 24, 23
VA 32
Analog Power (Input) - Positive power supply for the analog section. Refer to the Recommended Oper-
ating Conditions for appropriate voltages.
VLS 43 Serial Audio Interface Power (Input) - Determines the required signal level for the serial audio inter-
face. Refer to the Recommended Operating Conditions for appropriate voltages.
Control Port Definitions
SCL/CCLK 15 Serial Control Port Clock (Input) - Serial clock for the serial control port. Requires an external pull-up
resistor to the logic interface voltage in I
SDA/CDIN 16 Serial Control Data (Input/Output) - SDA is a data I/O line in I
resistor to the logic interface voltage, as shown in the Typical Connection Diagram. CDIN is the input
data line for the control port interface in SPI mode.
AD0/CS 17 Address Bit 0 (I
CS is the chip select signal for SPI format.
Stand-Alone Definitions
M0 17
Mode Selection (Input) - Determines the operational mode of the device as detailed in Tables 6 and 7.
M1 16
M2 15
M3 42
DSD Definitions
DSD_SCLK 42 DSD Serial Clock (Input) - Serial clock for the Direct Stream Digital audio interface.
DSD_EN 7 DSD-Enable (Input) - When held at logic '1' the device will enter DSD mode (Stand-Alone mode only).
DSDA1 3 Direct Stream Digital Input (Input) - Input for Direct Stream Digital serial audio data.
DSDB1 2
DSDA2 1
DSDB2 48
DSDA3 47
DSDB3 46
DSDA4 45
DSDB4 44
IC61 : NJM2285MTE1
Pin Description
2
C mode as shown in the Typical Connection Diagram.
2
C) / Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I
160
2
C mode and requires an external pull-up
2
C mode;