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PDF AKD4532 Data sheet ( Hoja de datos )
| Número de pieza | AKD4532 | |
| Descripción | Internet/Network/General Purpose Multimedia Audio CODEC | |
| Fabricantes | Asahi Kasei Microsystems | |
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ASAHI KASEI
[AK4532]
AK4532
Internet/Network/General Purpose Multimedia Audio CODEC
General Description
The AK4532 is a low-cost high-quality 16-Bit CODEC designed specifically for Internet Boxes, Network
PCs, and to interface with audio/video controller ICs for standard PC applications. AKM’s AK4532
serial interface mode simplifies the design process on existing and new audio projects. The converters
can have a range of 4 to 50 kHz. For voice mail applications, an internal 26 dB microphone preamp has
been added and because of the internal input mixer, music or other sounds can easily be mixed with voice.
Features
• 2ch Audio CODEC
• 2ch stereo including 1ch mono recording mixer with L/R, R/L, L/L and R/R switching
• 2ch stereo playback mixer
• Mic input with 26 dB optional gain
• High Jitter Tolerance
• Interface compatible with AKM’s AK4531
• Sampling Rate: 4 kHz to 50 kHz
• 3-wire Serial Interface for Mixer Control
• 5 V operation, can connect to 3.3 V Digital Controller.
• Low power consumption - 150 mW
• Power down mode
• Small low profile package - 24 pin VSOP.
Block Diagram
0178-E-01
1
1999/06
1 page  
ASAHI KASEI
[AK4532]
ANALOG CHARACTERISTICS
(Ta=25 ℃; VA, VD = 5.0V; fs = 44.1kHz; Signal Frequency = 1 kHz; MCLK=256fs; BCLK = 64 fs;
LRCK = fs, Gain, ATT and Mixer switches are defualt setting. Measurement frequency bandwidth is
10Hz to 20kHz, unless otherwise noted.)
Parameter
min typ
max units
A/D
measured via LineL and LineR
Resolution
16 Bits
S/(N+D)
-0.5 dB Input
74 80
dB
S/N
A-weighted
84 90
dB
Dynamic Range
-60 dB Input,
84 90
dB
A-weighted
Interchannel Isolation
(Note 1)
68 76
dB
Interchannel Gain Mismatch
0.2 0.5 dB
Gain Drift
100 ppm/℃
Offset Error
(Note 2)
+/- 1
LSB
Input Voltage
(Note 4)
2.50 2.70 2.90 Vpp
Mixer Input Resistance
30 60 100 kΩ
D/A
measured via LOUT and ROUT
Resolution
16 Bits
S/(N+D)
75 83
dB
S/N
A-weighted
83 87
dB
Dynamic Range
-60 dB Input,
83 87
dB
A-weighted
Interchannel Isolation
(Note 1)
80 100
dB
Interchannel Gain Mismatch
0.2 0.7 dB
Gain Drift
100 ppm/℃
Output Voltage
(Note 4)
2.85 3.05 3.35 Vpp
Load Resistance
10 kΩ
Out-of-Band Noise
BW < 100 kHz
-81 dB
MIC Amp
Gain 24 26 28 dB
Input Resistance
For 26dB setting
15 25 40 kΩ
Mixer Gain Control
32 Steps
Step Size
(Note 3)
02
dB
Gain Control Range
-50 12 dB
Master Volume
32 Steps
Step Size
(Note 3)
02
dB
Attenuation Control Range
-62 0 dB
Power Supplies
Normal Operation
VA
27 40 mA
VD 3 5 mA
Power Dissipation
150 225 mW
Power-Down Mode
VA
10 uA
VD 10 uA
Power Dissipation
100 200 uW
Note: 1. Crosstalk between channels on the same A/D or D/A.
2. Internal HPF removes offset.
3. Minimum spec applies to ≧-40dB setting.
4. Input and Output voltage scale with VA.
0178-E-01
5
1999/06
5 Page 
ASAHI KASEI
[AK4532]
Addr
02
03
08
09
0A
0B
Register Name
Voice Volume Lch
Voice Volume Rch
Line Volume Lch
Line Volume Rch
AUX Volume Lch
AUX Volume Rch
D7
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
D6 D5 D4
GAI4
GAI4
GAI4
GAI4
GAI4
GAI4
D3
GAI3
GAI3
GAI3
GAI3
GAI3
GAI3
D2
GAI2
GAI2
GAI2
GAI2
GAI2
GAI2
D1
GAI1
GAI1
GAI1
GAI1
GAI1
GAI1
D0
GAI0
GAI0
GAI0
GAI0
GAI0
GAI0
MUTE
ATT4:0
Initial
1: MUTE
0: No MUTE
32 levels with 2 dB step
00000: 12dB
00110: 0 dB
11111: -50 dB
“0000 0110”(No MUTE & 0dB)
Addr
10
11
12
13
14
15
Register Name
Output Mixer SW 1
Output Mixer SW 2
Lch Input Mixer SW 1
Rch Input Mixer SW 1
Lch Input Mixer SW 2
Rch Input Mixer SW 2
D7
D6
D5
AUXL
D4
LineL
AUXR
LineL
LineL
AUXL
AUXL
D3
LineR
VoiceL
LineR
LineR
AUXR
AUXR
D2
VoiceR
VoiceL
VoiceR
D1
D0
MIC
ON/OFF of Mixer Switches
0: OFF
1: ON
Initial
“000X XX00”
XXX=000: Addr=10,14,15 (All:OFF)
XXX=011: Addr=11(Output Mixer Voice R&L:ON)
XXX=100: Addr=12(Lch Input Mixer Line L :ON)
XXX=010: Addr=13(Rch Input Mixer Line R :ON)
Addr
16
19
Register Name
Reset and Power Down
MIC Amp Gain
D7
D6 D5 D4 D3 D2 D1
PD
D0
RST
MGAIN
RST initializes the contents of all registers except PD and RST registers. When PD pin goes low, RST
register becomes
“1”.
1: Normal Operation
0: Initialize
PD register enables the power down. When PD pin goes low, PD register becomes “1”.
1: Normal Operation
0: Power Down
MGAIN selects the gain of MIC amp. The initial state is “0”.
0: Bypass (0dB)
1: 26 dB
Try to avoid pops and clicks when activating or inactivating this function.
0178-E-01
11
1999/06
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet AKD4532.PDF ] | |
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