參數(shù)資料
型號(hào)： PT8R1202
廠商： Electronic Theatre Controls, Inc.
英文描述： Bluetooth Digital Audio Streaming IC
中文描述： 藍(lán)牙技術(shù)的數(shù)字音頻集成電路
文件頁數(shù)： 17/26頁
文件大?。?/td> 656K
代理商： PT8R1202
PT0137(08/04)
Ver:4
17
Data Sheet
PT8R1202
PT
Peric om Technology Inc .
Bluetooth Digital Audio Streaming IC
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External PCM interface
PCMIN, PCMOUT, PCMCLK, PCMSYNC carry one channel of voice data using 8-bit A/u-law, 13-bit /14-bit/16-bit linear
PCM at 8kbps. PT8R1202 generates PCMCLK and PCMSYNC as both outputs or input, which can be programmed, and
interfaces directly to PCM audio devices. PCMSYNC operates at fixed clock frequency of 8KHz. PCMCLK operates at one of
two fixed clock frequencies such as 128 and 256kHz. PCM interface supports both long frame sync signal and short frame sync
signal. Additionally, PT8R1202 supports two or four channels of 8-bit A/u-law PCM interfacing with external multi-channel
codec.
Table 8. Configuration of external PCM interface
Configuration
Supporting device
PCM type
Frame
type
L
S/L
L
L
L
S/L
Bit length
PCMCLK
clock
128kHz
128/256kHz
128/256kHz
128/256kHz
256KHz
128/256kHz
Channel
number
1
1
1
2(dual)
4(quad)
1,
2(volume)
1
1
Qualcomm MSM
Motorola MC145481
Oki MSM7717
Oki MSM7704
Oki MSM7705
Motorola MC145483
A, u-law
A, U-law
A, U-law
A, U-law
A, U-law
Linear
8bit
8bit
8bit
8bit
8bit
13bit
8bit A/u-law codec
13bit linear PCM
14bit linear PCM
16bit linear PCM
Oki MSM7716
TBD
Linear
Linear
L
S/L
14bit
16bit
128/256kHz
128/256kHz
PCM_CLK
(
128, 256, 512, 1024kHz
)
PCM_SYNC(8kHz)
(Short Frame)
PCM_SYNC(8kHz)
(Long Frame)
MSB 8bit A/u-law LSB
MSB
16bit linear PCM
LSB
MSB
14bit linear PCM
LSB
MSB
13bit linear PCM
LSB
8bit
13bit
14bit
16bit
3bit Vol
PCM_IN
(sample int at falling edge)
PCM_OUT
(sample out at rising edge)
MSB 8bit A/u-law -1Ch LSB
PCM_SYNC(8kHz)
(
Dual-channel
)
MSB 8bit A/u-law -2Ch LSB
MSB 8bit A/u-law -1Ch LSB
PCM_SYNC(8kHz)
(
Quad-channel
)
MSB 8bit A/u-law -2Ch LSB
8bit-3Ch
8bit-4Ch
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