Harman Kardon HK 990 (serv.man2) Service Manual ▷ View online
Copyright
¤ Cirrus Logic, Inc. 2005
(All Rights Reserved)
http://www.cirrus.com
CS5361
114 dB, 192 kHz, Multi-Bit Audio A/D Converter
Features
z
Advanced Multi-bit Delta-sigma Architecture
z
24-bit Conversion
z
114 dB Dynamic Range
z
-105 dB THD+N
z
System Sampling Rates up to 192 kHz
z
135 mW Power Consumption
z
High-pass Filter and DC Offset Calibration
z
Supports Logic Levels Between 5 and 2.5 V
z
Differential Analog Architecture
z
Overflow Detection
z
Pin-compatible with the CS5381
General Description
The CS5361 is a complete analog-to-digital converter for
digital audio systems. It performs sampling, analog-to-
digital conversion, and anti-alias filtering. The CS5361
generates 24-bit values for both left and right inputs in
serial form at sample rates up to 192 kHz per channel.
digital audio systems. It performs sampling, analog-to-
digital conversion, and anti-alias filtering. The CS5361
generates 24-bit values for both left and right inputs in
serial form at sample rates up to 192 kHz per channel.
The CS5361 uses a 5th-order, multi-bit, delta-sigma
modulator followed by digital filtering and decimation.
This removes the need for an external anti-alias filter.
The ADC uses a differential architecture which provides
excellent noise rejection.
modulator followed by digital filtering and decimation.
This removes the need for an external anti-alias filter.
The ADC uses a differential architecture which provides
excellent noise rejection.
The CS5361 is ideal for audio systems requiring wide dy-
namic range, negligible distortion, and low noise. These
applications include A/V receivers, DVD-R, CD-R, digital
mixing consoles, and effects processors.
namic range, negligible distortion, and low noise. These
applications include A/V receivers, DVD-R, CD-R, digital
mixing consoles, and effects processors.
ORDERING INFORMATION
CS5361-KSZ -10° to 70°C 24-pin SOIC
Lead Free
CS5361-KZZ -10° to 70°C 24-pin TSSOP Lead Free
CS5361-DZZ -40° to 85°C 24-pin TSSOP Lead Free
CDB5361
CS5361-DZZ -40° to 85°C 24-pin TSSOP Lead Free
CDB5361
Evaluation Board
Voltage Reference
Serial Output Interface
Digital
Filter
High
Pass
Filter
Pass
Filter
High
Pass
Pass
Filter
Decimation
Digital
Filter
Decimation
DAC
-
+
S/H
DAC
-
+
S/H
AINR+
SCLK
SDOUT
MCLK
RST
VQ
LRCK
AINR-
AINL+
AINL-
FILT+
I
2
S/LJ
M/S
HPF
MODE0
MODE1
REFGND
V
L
MDIV
LP Filter
LP Filter
∆Σ
∆Σ
OVFL
FEB ‘05
DS467F2
6
7
CS5361
DS467F2
2.0 PIN DESCRIPTIONS
RST
1
24
FILT+
M/S
2
23
REFGND
LRCK
3
22
VQ
SCLK
4
21
AINR
+
MCLK
5
20
AINR
-
VD
6
19
VA
GND
7
18
GND
VL
8
17
AINL-
SDOUT
9
16
AINL+
MDIV
10
15
OVFL
HPF
11
14
M1
I
2
S/LJ
12
13
M0
Pin Name
#
Pin Description
RST
1
Reset
(Input) - The device enters a low power mode when low.
M/S
2
Master/Slave Mode
(Input)
- Selects operation as either clock master or slave.
LRCK
3
Left Right Clock
(Input/Output) - Determines which channel, Left or Right, is currently active on the
serial audio data line.
SCLK
4
Serial Clock
(Input/Output) - Serial clock for the serial audio interface.
MCLK
5
Master Clock
(Input) - Clock source for the delta-sigma modulator and digital filters.
VD
6
Digital Power
(Input) - Positive power supply for the digital section.
GND
7,18
Ground
(Input) - Ground reference. Must be connected to analog ground.
VL
8
Logic Power
(Input) - Positive power for the digital input/output.
SDOUT
9
Serial Audio Data Output
(Output) - Output for two’s complement serial audio data.
MDIV
10
MCLK Divider
(Input) -
Enables a master clock divide by two function.
HPF
11
High-pass Filter Enable
(Input) -
Enables the Digital High-Pass Filter.
I
2
S/LJ
12
Serial Audio Interface Format Select
(Input) -Selects either the left-justified or I
2
S format for the SAI.
M0
M1
M1
13,
14
Mode Selection
(Input) - Determines the operational mode of the device.
OVFL
15
Overflow
(Output, open drain) -
Detects an overflow condition on both left and right channels.
AINL+
AINL-
AINL-
16,
17
Differential Left Channel Analog Input
(Input) - Signals are presented differentially to the delta-sigma
modulators via the AINL+/- pins.
VA
19
Analog Power
(Input) - Positive power supply for the analog section.
AINR-
AINR+
AINR+
20,
21
Differential Right Channel Analog Input
(Input) -Signals are presented differentially to the delta-sigma
modulators via the AINR+/- pins.
VQ
22
Quiescent Voltage
(Output) -
Filter connection for the internal quiescent reference voltage.
REF_GND
23
Reference Ground
(Input) - Ground reference for the internal sampling circuits.
FILT+
24
Positive Voltage Reference
(Output) - Positive reference voltage for the internal sampling circuits.
68
69
7
0
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