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参数资料
| 型号： | UDA1342TSDB-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 消费家电 |
| 英文描述： | Audio CODEC |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封装： | 5.30 MM, ROHS COMPLIANT, PLASTIC, MO-150, SSOP-28 |
| 文件页数： | 2/48页 |
| 文件大小： | 304K |
| 代理商： | UDA1342TSDB-T |
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2000 Jul 31
10
Philips Semiconductors
Product specication
Audio CODEC
UDA1342TS
handbook, full pagewidth
MGT019
BASS BOOST
AND
TREBLE
VOLUME
AND
MUTE
DE-EMPHASIS
VOLUME
AND
MUTE
master
VOLUME
AND
MUTE
to
digital
interface
output
from
digital
interface
input
from
decimation
filter
to
interpolation
filter
+
Fig.5 Digital mixer (DAC).
8.8
Noise shaper
The 5th-order noise shaper operates at 64fs. It shifts
in-band quantization noise to frequencies well above the
audio band. This noise shaping technique enables high
signal-to-noise ratios to be achieved. The noise shaper
output is converted into an analog signal using a Filter
Stream Digital-to-Analog Converter (FSDAC).
8.9
Filter stream DAC
The FSDAC is a semi-digital reconstruction filter that
converts the 1-bit data stream of the noise shaper to an
analog output voltage. The filter coefficients are
implemented as current sources and are summed at
virtual ground of the output operational amplifier. In this
way very high signal-to-noise performance and low clock
jitter sensitivity is achieved. A post-filter is not needed due
to the inherent filter function of the DAC. On-board
amplifiers convert the FSDAC output current to an output
voltage signal capable of driving a line output.
The output voltage of the FSDAC is proportionally to the
power supply voltage.
8.10
Digital interface
The UDA1342TS supports the following data input/output
formats for the various modes (see Fig.6).
L3-bus and I2C-bus mode:
I2S-bus format with data word length of up to 24 bits
MSB-justified serial format with data word length of up to
24 bits
LSB-justified serial format with data word lengths of
16, 20 or 24 bits
MSB-justified data output and
LSB-justified 16, 20 and 24 bits data input.
Static pin mode:
I2S-bus format with data word length of up to 24 bits
MSB-justified data output and
LSB-justified 16, 20 and 24 bits data input.
相关PDF资料 |
PDF描述 |
|---|---|
| UDA1342TS/N1,512 | Audio CODEC; Package: SOT341-1 (SSOP28); Container: Tube Dry Pack |
| UDA1342TS/N1,518 | Audio CODEC; Package: SOT341-1 (SSOP28); Container: Reel Dry Pack, SMD, 13" |
| UDA1345TS/N2,118 | Economy audio CODEC; Package: SOT341-1 (SSOP28); Container: Reel Pack, SMD, 13" |
| UDA1345TS/N2,112 | Economy audio CODEC; Package: SOT341-1 (SSOP28); Container: Tube |
| UDA1361TS/N1,112 | 96 kHz sampling 24-bit stereo audio ADC; Package: SOT369-1 (SSOP16); Container: Tube |
相关代理商/技术参数 |
参数描述 |
|---|---|
| UDA1343 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy audio CODEC with features |
| UDA1343TT | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Economy audio CODEC with features |
| UDA1344 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low-voltage low-power stereo audio CODEC with DSP features |
| UDA1344TS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low-voltage low-power stereo audio CODEC with DSP features |
| UDA1344TS/N2 | 制造商:NXP Semiconductors 功能描述:IC CODEC AUDIO W/DSP 28-SSOP 制造商:NXP Semiconductors 功能描述:IC, CODEC, AUDIO, W/DSP, 28-SSOP |
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