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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： | 20/22页 |
| 文件大小： | 160K |
| 代理商： | UDA1334BTS/N2,112 |
2000 Jul 31
7
NXP Semiconductors
Product specification
Low power audio DAC
UDA1334BTS
8
FUNCTIONAL DESCRIPTION
8.1
System clock
The UDA1334BTS operates in slave mode only; this
means that in all applications the system must provide the
system clock and the digital audio interface signals
(BCK and WS).
The system clock must be locked in frequency to the digital
interface signals.
The UDA1334BTS automatically detects the ratio between
the SYSCLK and WS frequencies.
The BCK clock can be up to 64fs, or in other words the
BCK frequency is 64 times the Word Select (WS)
frequency or less: fBCK ≤ 64 × fWS.
Remarks:
1. The WS edge MUST fall on the negative edge of the
BCK at all times for proper operation of the digital I/O
data interface
2. For LSB-justified formats it is important to have a WS
signal with a duty factor of 50%.
The modes which are supported are given in Table 1.
Table 1
Supported sampling ranges
Notes
1. This mode can only be supported for power supply
voltages down to 2.4 V. For lower voltages, in
192fs mode the sampling frequency should be limited
to 55 kHz.
2. Not supported in the low sampling frequency mode.
An example is given in Table 2 for a 12.228 MHz system
clock input.
Table 2
Example using a 12.228 MHz system clock
Note
1. This mode can only be supported for power supply
voltages down to 2.4 V. For lower voltages, in 192fs
mode the sampling frequency should be limited to
55 kHz.
8.2
Interpolation filter
The interpolation digital filter interpolates from 1fs to 64fs
by cascading FIR filters (see Table 3).
Table 3
Interpolation filter characteristics
8.3
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 DAC (FSDAC).
CLOCK MODE
SAMPLING RANGE
768fs
8 to55kHz
512fs
8to100 kHz
384fs
8to100 kHz
256fs
8to100 kHz
192fs
8 to 100 kHz(1)(2)
128fs
8to100 kHz(2)
CLOCK MODE
SAMPLING FREQUENCY
128fs
96 kHz
192fs
64 kHz(1)
256fs
48 kHz
384fs
32 kHz
512fs
24 kHz
768fs
16 kHz
ITEM
CONDITION
VALUE (dB)
Pass-band ripple
0 to 0.45fs
±0.02
Stop band
>0.55fs
50
Dynamic range
0 to 0.45fs
>114
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| 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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