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AK4537 데이터시트 PDF




Asahi Kasei Microsystems에서 제조한 전자 부품 AK4537은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AK4537 기능
기능 16-Bit Stereo CODEC
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AK4537 데이터시트, 핀배열, 회로
ASAHI KASEI
[AK4537]
AK4537
16-Bit ∆Σ Stereo CODEC with MIC/HP/SPK-AMP
GENERAL DESCRIPTION
The AK4537 targeted at PDA and other low-power, small size applications. It features a 16-bit stereo
CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Speaker-Amplifier. Input circuits
include a Microphone-Amplifier and an ALC (Auto Level Control) circuit. The AK4537 is available in a
52-QFN, utilizing less board space than competitive offerings.
FEATURES
1. Resolution : 16bits
2. Recording Function
Stereo Mic Input
Stereo Line Input
1st MIC Amplifier : +20dB or 0dB
2nd Amplifier with ALC
-8dB +27.5dB, 0.5dB Step (MIC input)
-23.5dB +12dB, 0.5dB Step (LINE input)
ADC Performance : S/(N+D) : 79dB, DR, S/N : 83dB (MIC input)
S/(N+D) : 88dB, DR, S/N : 91dB (LINE input)
3. Playback Function
Digital De-emphasis Filter (tc=50/15µs, fs=32kHz, 44.1kHz, 48kHz)
Digital Volume (0dB -127dB, 0.5dB Step, Mute)
Stereo Headphone-Amp
- S/(N+D) : 70dB, S/N : 90dB
- Output Power : 15mW@16(HVDD=3.3V)
- Click Noise Free at Power ON/OFF
Mono Speaker-Amp with ALC
- S/(N+D) : 64dB@150mW, S/N : 90dB
- BTL Output
- Output Power : 300mW@8, THD+N=10% (HVDD=3.3V)
Mono and Stereo Beep Inputs
Mono Line Output
- Differential Output
- Performance : S/(N+D) : 89dB, S/N : 95dB
Stereo Line Output
- Performance : S/(N+D) : 88dB, S/N : 92dB
4. Power Management
5. Master Clock
(1) PLL Mode
Frequencies : 11.2896MHz, 12MHz and 12.288MHz
Input Level : CMOS
(2) External Clock Mode
Frequencies : 2.048MHz 12.288MHz
6. Output Master Clock Frequencies : 32fs/64fs/128fs/256fs
7. Sampling Rate :
(1) PLL mode
8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
(2) External Clock mode
8kHz 48kHz
8. Control mode: 4-wire Serial / I2C Bus
9. Master/Slave mode
MS0202-E-00
-1-
2003/2




AK4537 pdf, 반도체, 판매, 대치품
ASAHI KASEI
[AK4537]
n Comparison with AK4534
1. Function
Function
Line Input
Mic Input
IPGA
Stereo Line Output
SPK-Amp Gain Select
MOUT Gain Select
Path from IPGA Lch to Analog
Output
AK4534
No
Mono
Mono
No
No
No
No
AK4537
Yes (Stereo)
Stereo
Stereo
Yes
Yes
Yes
Yes
2. Pin
pin#
1
2
3
6
42
43
46
47
51
52
AK4534
MICOUT
TST1
EXT
INT
TST2
TST3
TST4
TST5
AIN
NC
AK4537
MICOUTL
MICOUTR
EXT/MICR
INT/MICL
ROUT
LOUT
RIN2
LIN2
LIN1
RIN1
3. Register
Addr
00H
01H
02H
03H
05H
07H
0EH
0FH
10H
Contents
PMIPGL (IPGA Lch Power Control) is added.
PMLO (Stereo Line Output Power Control) is added.
SPKG (SPK-Amp Output Power Select) is added.
MOGN (MOUT Gain Select) is added.
MICM (IPGA Lch MOUT) is added
PSLO (Stereo Line Output Power Save Mode Select) is added.
MICL (IPGA Lch LOUT/ROUT, HP-Amp, SPK-Amp) is added.
HPLM, HPRM (HP-Amp Mono Output Select) is deleted.
HPM (HP-Amp Mono Output Select) is added.
IPGAC (IPGA Control) is added.
ATTM (IPGA Lch MOUT ATT Select) is added.
ATTS2-0 (IPGA Lch LOUT/ROUT, HP-Amp, SPK-Amp ATT Select) is added.
IPGAR6-0 (Rch IPGA Control) is added.
PMADR (ADC Rch Power Control) is added.
PMMICR (MIC-amp Rch Power Control) is added.
PMIPGR (IPGA Rch Power Control) is added.
INL (IPGA Lch Input Select) is added.
INR (IPGA Rch Input Select) is added.
MS0202-E-00
-4-
2003/2

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AK4537 전자부품, 판매, 대치품
ASAHI KASEI
[AK4537]
ABSOLUTE MAXIMUM RATINGS
(AVSS, DVSS, PVSS, HVSS=0V; Note 1)
Parameter
Symbol
min
Power Supplies: Analog
AVDD
0.3
Digital
DVDD
0.3
PLL
PVDD
0.3
Headphone-Amp / Speaker-Amp HVDD
0.3
|AVSS – PVSS|
(Note 2)
GND1
-
|AVSS – DVSS|
(Note 2)
GND2
-
|AVSS – HVSS|
(Note 2)
GND3
-
Input Current, Any Pin Except Supplies
IIN -
Analog Input Voltage
VINA
0.3
Digital Input Voltage
VIND
0.3
Ambient Temperature (powered applied)
Ta 10
Storage Temperature
Tstg 65
max
4.6
4.6
4.6
4.6
0.3
0.3
0.3
±10
AVDD+0.3
DVDD+0.3
70
150
Note 1. All voltages with respect to ground.
Note 2. AVSS, DVSS, PVSS and HVSS must be connected to the same analog ground plane.
Units
V
V
V
V
V
V
V
mA
V
V
°C
°C
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMENDED OPERATING CONDITIONS
(AVSS, DVSS, PVSS, HVSS=0V; Note 1)
Parameter
Symbol
min typ
Power Supplies Analog
AVDD
2.4 3.3
(Note 3) Digital
DVDD
2.4 3.3
PLL
PVDD
2.4 3.3
HP / SPK-Amp
HVDD
2.4 3.3
max
3.6
AVDD
AVDD
AVDD
Units
V
V
V
V
Note 1. All voltages with respect to ground.
Note 3. The power up sequence between AVDD, DVDD, HVDD and PVDD is not critical.
It is recommended that DVDD and PVDD are the same voltage as AVDD in order to reduce the current at power
down mode.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0202-E-00
-7-
2003/2

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