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参数资料
| 型号： | AS3510-T |
| 厂商： | ams |
| 文件页数： | 15/20页 |
| 文件大小： | 0K |
| 描述： | IC CODEC AFE ANALOG 49-CABGA |
| 标准包装： | 2,250 |
| 类型： | 音频编解码器 |
| 应用： | 便携式音频，电话 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 49-WFBGA |
| 供应商设备封装： | 49-CSBGA（7x7） |
| 包装： | 带卷 (TR) |
Product Brief AS3510
Rev. 1v2, June 2004
CONFIDENTIAL
Page 3 of 19
Modes of Operation
Inputs
Outputs
LDO-Modes
ENLDO12
ENLDO3
DVDD, AVDD
PVDD
OFF
LL
LDO1, LDO2 are OFF
2.8–3.6V supply fr. Ext.
LDO3 is OFF
1.75-3.6V supply fr. Ext.
ON_12
HL
LDO1, LDO2 are ON
Output is 2.9Vtyp
LDO3 is OFF
1.75-3.6V supply fr. Ext.
or connected to DVDD
ON_123
HH
LDO1, LDO2 are ON
Output is 2.9Vtyp
LDO3 is ON
Output 2.5Vtyp
Table 1
LDO Operating Modes
Nodes:
-
1. BVDD as input to the LDO regulators has to be >=3.0V.
-
2. DVDD - AVDD max. difference of 100mV.
-
3. PVDD has to be lower or equal to DVDD.
-
4. LDO1 is to be used for regulating AVDD (connect pin 25 to pin 26)
-
5. LDO2 output is internaly connected to DVDD (pos. digital supply)
-
6. LDO3 output is internaly connected to PVDD (pos. peripheral supply)
Inputs
Outputs
DAC-Modes
DACPD
I2S
Gain3:0
OUTR, OUTL
OFF
H
X
LLLL
TriState
DAC_ON
L
LRCK up to 50kHz
MCLK … 128*F(LRCK)
SCLK L=>H strobes SDI
SCLK … >=38*F(LRCK)
SDI left justified with MSB first
at 2nd SCLK edge
LLLL
TriState
AUDIO_ON
L
LRCK up to 50kHz
MCLK … 128*F(LRCK)
SCLK L=>H strobes SDI
SCLK … >=38*F(LRCK)
SDI left justified with MSB first
at 2nd SCLK edge
LLLH
.
HHHH
Stereo audio output
with PowerAmp gain adjusted
in 3dB steps by GAIN(3:0)
Table 2
DAC Operating Modes
Nodes:
-
During supply voltages settling at system start-up GAIN(3:0) should be held “L”.
-
The MCLK frequency ratio to LRCK is permanently checked. If the ratio is different to 128, the DAC goes in Reset-Mode (no
audio will betransferred).
-
MCLK rising edge should not be within +/-10ns of LRCK edges.
-
Capacitors at VREF, AGND and BGND are needed for the DAC operation.
-
The SCLK has to have at least 34 or 38 cycles within one LRCK cycle
2*(16bit data + the leading empty bit) or 2*(18bit data + the leading empty bit)
-
There can be more SDI bits presented but just the first 18 bits are transferred.
ams
AG
Technical
content
still
valid
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