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参数资料
| 型号： | UDA1334BTS/N2,112 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | DAC |
| 英文描述： | Low power audio DAC; Package: SOT369-1 (SSOP16); Container: Tube |
| 中文描述： | SERIAL INPUT LOADING, 24-BIT DAC, PDSO16 |
| 封装： | 4.40 MM, PLASTIC, MO-152, SOT369-1, SSOP-16 |
| 文件页数： | 21/22页 |
| 文件大小： | 160K |
| 代理商： | UDA1334BTS/N2,112 |
2000 Jul 31
8
NXP Semiconductors
Product specification
Low power audio DAC
UDA1334BTS
8.4
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. No post-filter is 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 scales proportionally
with the power supply voltage.
8.5
Power-on reset
The UDA1334BTS has an internal Power-on reset circuit
(see Fig.3) which resets the test control block.
The reset time (see Fig.4) is determined by an external
capacitor which is connected between pin Vref(DAC) and
ground. The reset time should be at least 1
μs for
Vref(DAC) < 1.25 V. When VDDA is switched off, the device
will be reset again for Vref(DAC) <0.75 V.
During the reset time the system clock should be running.
handbook, halfpage
VDDA
Vref(DAC)
3.0 V
13
12
MGL985
UDA1334BTS
C1
>
10
μF
RESET
CIRCUIT
50 k
Ω
50 k
Ω
Fig.3 Power-on reset circuit.
handbook, halfpage
3.0
VDDD
(V)
1.5
0
t
3.0
VDDA
(V)
1.5
0
t
3.0
Vref(DAC)
(V)
1.5
1.25
0.75
0
t
MGL984
>1 μs
Fig.4 Power-on reset timing.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| UDA1334TS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low power audio DAC |
| UDA1334TS/N1,112 | 功能描述:数模转换器- DAC ULTRA LOW COST DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| UDA1334TS/N1,118 | 功能描述:数模转换器- DAC ULTRA LOW COST DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| UDA1334TS/N1118 | 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| UDA1334TSDH | 功能描述:数模转换器- DAC ULTRA LOW COST DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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