Pin Descriptions - Harman Kardon HK 990/230 Service Manual

2.0 PIN DESCRIPTIONS

#
Pin Name Pin Description
1
Reset (Input) - The device enters a low power mode when low.
RST
2 Master/Slave Mode (Input) - Selects operation as either clock master or slave.
M/S
3
Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the
LRCK
serial audio data line.
4
Serial Clock (Input/Output) - Serial clock for the serial audio interface.
SCLK
5 Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
MCLK
6
Digital Power (Input) - Positive power supply for the digital section.
VD
7,18 Ground (Input) - Ground reference. Must be connected to analog ground.
GND
8
Logic Power (Input) - Positive power for the digital input/output.
VL
9 Serial Audio Data Output (Output) - Output for two's complement serial audio data.
SDOUT
10 MCLK Divider (Input) - Enables a master clock divide by two function.
MDIV
11 High-pass Filter Enable (Input) - Enables the Digital High-Pass Filter.
HPF
2
12 Serial Audio Interface Format Select (Input) -Selects either the left-justified or I
S/LJ
I
13,
Mode Selection (Input) - Determines the operational mode of the device.
M0
14
M1
15
Overflow (Output, open drain) - Detects an overflow condition on both left and right channels.
OVFL
16, Differential Left Channel Analog Input (Input) - Signals are presented differentially to the delta-sigma
AINL+
modulators via the AINL+/- pins.
17
AINL-
19
Analog Power (Input) - Positive power supply for the analog section.
VA
20, Differential Right Channel Analog Input (Input) -Signals are presented differentially to the delta-sigma
AINR-
modulators via the AINR+/- pins.
21
AINR+
22 Quiescent Voltage (Output) - Filter connection for the internal quiescent reference voltage.
VQ
23 Reference Ground (Input) - Ground reference for the internal sampling circuits.
REF_GND
24
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
FILT+
1 24
RST
2 23
M/S
3 22
LRCK
4 21
SCLK
5 20
MCLK
6 19
VD
7 18
GND
8 17
VL
9 16
SDOUT
10 15
MDIV
11 14
HPF
2
12 13
I S/LJ
68
FILT+
REFGND
VQ
AINR+
AINR-
VA
GND
AINL-
AINL+
OVFL
M1
M0
CS5361
2
S format for the SAI.
DS467F2