Document
[AK5358A]
AK5358A
96kHz 24-Bit ΔΣ ADC
GENERAL DESCRIPTION
The AK5358A is a stereo A/D Converter with wide sampling rate of 8kHz ∼ 96kHz and is suitable for consumer to professional audio system. The AK5358A achieves high accuracy and low cost by using Enhanced dual bit ΔΣ techniques. The AK5358A requires no external components because the analog inputs are single-ended. The audio interface has two formats (MSB justified, I2S) and can correspond to various systems like DTV, DVR and AV Receiver.
FEATURES
Linear Phase Digital Anti-Alias Filtering
Single-ended Input
Digital HPF for DC-Offset cancel
S/(N+D): 92dB
DR:
102dB
S/N:
102dB
Sampling Rate Ranging from 8kHz to 96kHz
Master Clock:
256fs/384fs/512fs/768fs (8kHz ∼ 48kHz)
256fs/384fs
(48kHz ∼ 96kHz)
Input level: TTL/CMOS
Master / Slave Mode
Audio Interface: 24bit MSB justified / I2S selectable
Power Supply: 4.5 ∼ 5.5V (Analog), 2.7 ∼ 5.5V (Digital)
Ta = −20 ∼ 85°C Small 16pin TSSOP Package AK5357/59/81 Pin-compatible
VA AGND VD DGND
MCLK
AINL AINR VCOM
ΔΣ Modulator
ΔΣ Modulator
Voltage Reference
Decimation Filter
Decimation Filter
Clock Divider
Serial I/O Interface
LRCK SCLK
SDTO
CKS2 CKS1 CKS0
PDN
DIF
MS0511-E-02
-1-
2008/01
■ Ordering Guide
AK5358AET AKD5358A
■ Pin Layout
[AK5358A]
−20 ∼ +85°C
16pin TSSOP (0.65mm pitch)
Evaluation Board for AK5358A
AINR AINL CKS1 VCOM AGND VA VD DGND
1 2 3 4 5 6 7 8
Top View
16 CKS0 15 CKS2 14 DIF 13 PDN 12 SCLK 11 MCLK 10 LRCK 9 SDTO
■ Compatibility with AK5357, AK5359 and AK5381
fs S/(N+D) DR VIH@TTL Level Mode VA (Analog Supply)
VD (Digital Supply)
HPF Disable
Operating Temperature
AK5357 4kHz to 96kHz
88dB 102dB 2.2V
2.7 to 5.5V
2.7 to 5.5V
Available ET: −20 ∼ +85°C VT: −40 ∼ +85°C
AK5358A 8kHz to 96kHz
92dB 102dB 2.2V
4.5 to 5.5V
2.7 to 5.5V
Not Available ET: −20 ∼ +85°C
AK5381 4kHz to 96kHz
96dB 106dB
2.4V
4.5 to 5.5V
2.7 to 5.5V
3.0 to 5.5V @96kHz
Available ET: −20 ∼ +85°C VT: −40 ∼ +85°C XT: −40 ∼ +85°C
AK5359 8kHz to 216kHz
94dB 102dB Not Available
4.5 to 5.5V
3.0 to 5.5V
Available ET: −20 ∼ +85°C VT: −40 ∼ +85°C
MS0511-E-02
-2-
2008/01
[AK5358A]
PIN / FUNCTION
No. Pin Name 1 AINR 2 AINL 3 CKS1 4 VCOM 5 AGND 6 VA 7 VD 8 DGND 9 SDTO
10 LRCK 11 MCLK 12 SCLK
13 PDN
14 DIF 15 CKS2 16 CKS0
I/O Function
I Rch Analog Input Pin
I Lch Analog Input Pin
I Mode Select 1 Pin
O
Common Voltage Output Pin, VA/2 Bias voltage of ADC input.
- Analog Ground Pin
- Analog Power Supply Pin, 4.5 ∼ 5.5V
- Digital Power Supply Pin, 2.7 ∼ 5.5V
- Digital Ground Pin
O
Audio Serial Data Output Pin “L” Output at Power-down mode.
I/O
Output Channel Clock Pin “L” Output in Master Mode at Power-down mode.
I Master Clock Input Pin
I/O
Audio Serial Data Clock Pin “L” Output in Master Mode at Power-down mode.
Power Down Mode & Reset Pin
I “H”: Power up, “L”: Power down & Reset
The AK5358A must be reset once upon power-up.
I
Audio Interface Format Pin “H”: 24bit I2S Compatible, “L”: 24.