Harman Kardon AVR 130 Service Manual ▷ View online
ASAHI KASEI
AKM CONFIDENTIAL
[AK5381]
Rev.0.4
2002/08
- 1 -
GENERAL DESCRIPTION
The AK5381 is a stereo A/D Converter with wide sampling rate of 4kHz
∼
96kHz and is suitable for
High-end audio system. The AK5381 achieves high accuracy and low cost by using Enhanced dual bit
∆Σ
techniques. The AK5381 requires no external components because the analog inputs are single-
ended. The audio interface has two formats (MSB justified, I
2
S) and can correspond to many systems like
music instrument and AV receiver.
FEATURES
Stereo
∆Σ
ADC
On-Chip Digital Anti-Alias Filtering
Single-ended Input
Digital HPF for DC-Offset cancel
S/(N+D): 96dB@5V for 48kHz
DR:
Single-ended Input
Digital HPF for DC-Offset cancel
S/(N+D): 96dB@5V for 48kHz
DR:
106dB@5V for 48kHz
S/N:
106dB@5V for 48kHz
Sampling Rate Ranging from 4kHz to 96kHz
Master Clock:
Master Clock:
256fs/384fs/512fs/768fs (
∼
48kHz)
256fs/384fs
(
∼
96kHz)
Audio Interface: Master or Slave Mode selectable
Input level: TTL/CMOS selectable
Output format: 24bit MSB justified / I
Input level: TTL/CMOS selectable
Output format: 24bit MSB justified / I
2
S selectable
Power Supply:
4.5
∼
5.5V (VA)
2.7
∼
5.5V (VD at 48kHz)
3.0
∼
5.5V (VD at 96kHz)
Ta = -40
∼
85
°
C
Small 16pin TSSOP Package
AK5380 Pin-compatible
AK5380 Pin-compatible
∆Σ
Modulator
MCLK
AINL
LRCK
SCLK
SDTO
DIF
VCOM
Clock Divider
AINR
AGND
VA
Decimation
Filter
Serial I/O
Interface
Voltage Reference
CKS1
DGND
VD
CKS2
∆Σ
Modulator
Decimation
Filter
PDN
CKS0
24Bit 96kHz
∆Σ
ADC
AK5381
= Preliminary =
IC 76
ASAHI KASEI
AKM CONFIDENTIAL
[AK5381]
Rev.0.4
2002/08
- 2 -
Ordering Guide
AK5381VT
−
40
∼
+85
°
C
16pin TSSOP (0.65mm pitch)
AKD5381
Evaluation Board for AK5381
Pin Layout
CKS1
VCOM
VD
DGND
AINR
AINL
AGND
VA
Top View
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
DIF
PDN
LRCK
MCLK
SCLK
CKS2
CKS0
SDTO
Compatibility with AK5380
AK5380
AK5381
Master Mode
Not Available
Available
HPF OFF
Not Available
Available
VD (Digital Supply)
4.5 to 5.5V@fs=96kHz
3.0 to 5.5V@fs=96kHz
Pin #3
NC
CKS1
Pin #15
TTL
CKS2
Pin #16
TST
CKS0
ASAHI KASEI
AKM CONFIDENTIAL
[AK5381]
Rev.0.4
2002/08
- 3 -
PIN / FUNCTION
No.
Pin Name
I/O
Function
1
AINR
I
Rch Analog Input Pin
2
AINL
I
Lch Analog Input Pin
3
CKS1
I
Mode Select 1 Pin
4
VCOM
O
Common Voltage Output Pin, VA/2
Bias voltage of ADC input.
5
AGND
-
Analog Ground Pin
6
VA
-
Analog Power Supply Pin, 4.5
∼
5.5V
7
VD
-
Digital Power Supply Pin, 2.7
∼
5.5V(fs=4k
∼
48kHz), 3.0
∼
5.5V(fs=48k
∼
96kHz)
8
DGND
-
Digital Ground Pin
9
SDTO
O
Audio Serial Data Output Pin
“L” Output at Power-down mode.
10
LRCK
I/O
Output Channel Clock Pin
“L” Output in Master Mode at Power-down mode.
11
MCLK
I
Master Clock Input Pin
12
SCLK
I/O
Audio Serial Data Clock Pin
“L” Output in Master Mode at Power-down mode.
13
PDN
I
Power Down Mode Pin
“H”: Power up, “L”: Power down
14
DIF
I
Audio Interface Format Pin
“H” : 24bit I
2
S Compatible, “L” : 24bit MSB justified
15
CKS2
I
Mode Select 2 Pin
16
CKS0
I
Mode Select 0 Pin
Note: All digital input pins should not be left floating.
HCF4053B
FUNCTION DIAGRAM & PIN DESCRIPTION
2/10
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
(IC44,45,51,80,89)
TRUTH TABLE
X : Don’t Care
FUNCTIONAL DIAGRAM
(IC44,45,51,80,89)
PIN No
SYMBOL
NAME AND FUNCTION
11, 10, 9
A, B, C
Binary Control Inputs
6
INH
Inhibit Inputs
12, 13, 2, 1,
5, 3
IN/OUT
ax,ay,bx,by,cx,cy Input/
Output
Output
14
OUT/IN
ax or ay
15
OUT/IN
bx or by
4
OUT/IN
cx or cy
7
V
EE
Supply Voltage
8
V
SS
Negative Supply Voltage
16
V
DD
Positive Supply Voltage
INHIBIT
C or B or A
0
0
ax or bx or cx
0
1
ay or by or cy
1
X
NONE
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