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參數(shù)資料
| 型號： | AD1890 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | SamplePort Stereo Asynchronous Sample Rate Converters |
| 中文描述： | SamplePort立體聲異步采樣速率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 416K |
| 代理商： | AD1890 |
AD1890/AD1891
REV. 0
–5–
AD1890/AD1891 PIN LIST
Serial Input Interface
Pin Name Number
I/O
Description
DAT A_I
3
I
Serial input, MSB first, containing two channels of 4- to 20-bits of twos-complement data per
channel. AD1891 ONLY: Maximum of 16 data bits per channel; additional bits ignored.
Bit clock input for input data.
Word clock input for input data. T his input is rising edge sensitive. (Not required in L
R
input data
clock triggered mode [T RGLR_I = HI].)
Left/
right
clock input for input data. Must run continuously.
BCLK _I
WCLK _I
4
5
I
I
L
R
_I
6
I
Serial Output Interface
Pin Name Number
I/O
Description
DAT A_O
23
O
Serial output, MSB first, containing two channels of 4- to 24-bits of twos-complement data per
channel.
Bit clock input for output data.
Word clock input for output data. T his input is rising edge sensitive. (Not required in L
R
output
data clock triggered mode [T RGLR_O = HI].)
Left/
right
clock input for output data. Must run continuously.
BCLK _O
WCLK _O
26
25
I
I
L
R
_O
24
I
Input Control Signals
Pin Name Number
I/O
Description
BK POL_I
10
I
Bit clock polarity. LO: Normal mode. Input data is sampled on rising edges of BCLK _I. HI:
Inverted mode. Input data is sampled on falling edges of BCLK _I.
T rigger on L
R
_I. HI: Changes in L
R
_I indicate beginning
1
of valid input data. LO: Rising edge of
WCLK _I indicates beginning of valid input data.
MSB delay. HI: Input data is delayed one BCLK _I after either L
R
_I (T RGLR_I = HI) or WCLK _I
(T RGLR_I = LO) indicates the beginning of valid input data. Included for I
2
S data format
compatibility. LO: No delay.
T RGLR_I
11
I
MSBDLY_I 12
I
NOT E
1
T he beginning of valid data will be delayed by one BLCK _I if MSBDEL_I is selected (HI).
Group Delay
Intuitively, the time interval required for a full-level input pulse
to appear at the converter’s output, at full level, expressed in
milliseconds (ms). More precisely, the derivative of radian phase
with respect to radian frequency at a given frequency.
T ransport Delay
T he time interval between when an impulse is applied to the
converters input and when the output starts to be affected by
this impulse, expressed in milliseconds (ms). T ransport delay is
independent of frequency.
DE FINIT IONS
Dynamic Range
T he ratio of a near full-scale input signal to the integrated noise
in the passband (0 to
≈
20 kHz), expressed in decibels (dB). Dy-
namic range is measured with a –60 dB input signal and
“60 dB” arithmetically added to the result.
T otal Harmonic Distortion + Noise
T otal Harmonic Distortion plus Noise (T HD+N) is defined as
the ratio of the square root of the sum of the squares of the val-
ues of the harmonics and noise to the rms value of a sinusoidal
input signal. It is usually expressed in percent (%) or decibels.
Interchannel Phase Deviation
Difference in input sampling times between stereo channels, ex-
pressed as a phase difference in degrees between 1 kHz inputs.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD1891 | SamplePort Stereo Asynchronous Sample Rate Converters |
| AD1895YRSRL | SPACER NYLON #2 SCREW 13/16,1 |
| AD1895YRS | 192 kHz Stereo Asynchronous Sample Rate Converter |
| AD1895AYRS | 10-Bit, Complete, 40 MSPS, dual Transmit D/A Converter; Package: Evaluation Boards; No of Pins: -; Temperature Range: Industrial |
| AD1895AYRSRL | 192 kHz Stereo Asynchronous Sample Rate Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1890JN | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin PDIP W 制造商:Rochester Electronics LLC 功能描述:IC, 20-BIT CONVERTER IC - Bulk |
| AD1890JNZ | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin PDIP W |
| AD1890JP | 制造商:Rochester Electronics LLC 功能描述:IC, 20-BIT CONVERTER IC - Bulk 制造商:Analog Devices 功能描述:IC 20-BIT CONVERTER |
| AD1890JP-REEL | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin PLCC T/R 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| AD1890JPZ | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin PLCC 制造商:Analog Devices 功能描述:SAMPLE RATE CNVRTR 28PLCC - Rail/Tube |
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