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参数资料
| 型号： | AD1895AYRSZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC SAMP-RATEHP/CONV 24BIT 28SSOP |
| 标准包装： | 1,500 |
| 类型： | 采样率转换器 |
| 应用： | 车载音频，接收器，机顶盒 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
REV. B
AD1895
–15–
PRODUCT OVERVIEW (continued from page 1)
The digital servo loop measures the time difference between
input and output sample rates within 5 ps. This is necessary in
order to select the correct polyphase filter coefficient. The digital
servo loop has excellent jitter rejection for both input and output
sample rates as well as the master clock. The jitter rejection begins
at less than 1 Hz. This requires a long settling time whenever
RESET is deasserted or when the input or output sample rate
changes. To reduce the settling time, upon deassertion of
RESET
or a change in a sample rate, the digital servo loop enters the Fast
Settling Mode. When the digital servo loop has adequately settled
in the Fast Mode, it switches into the Normal or Slow Settling
Mode and continues to settle until the time difference measurement
between input and output sample rates is within 5 ps. During
Fast Mode, the MUTE_OUT signal is asserted high. Normally,
the MUTE_OUT is connected to the MUTE_IN pin. The
MUTE_IN signal is used to softly mute the AD1895 upon
assertion and softly unmute the AD1895 when it is deasserted.
The sample rate converter of the AD1895 can be bypassed
altogether using the Bypass Mode. In Bypass Mode, the AD1895’s
serial input data is directly passed to the serial output port with-
out any dithering. This is useful for passing through nonaudio
data or when the input and output sample rates are synchronous
to one another and the sample rate ratio is exactly 1 to 1.
The AD1895 is a 3.3 V, 5 V input tolerant part and is available
in a 28-lead SSOP SMD package. The AD1895 is 5 V input
tolerant only when the VDD_IO supply pin is supplied with 5 V.
FREQUENCY – kHz
–180
dBr
2.5
5.0
7.5
10.0
12.5
15.0
17.5
–170
–160
–150
–140
–130
–120
–110
20.0
TPC 49. THD + N vs. Frequency Input, 48 kHz: 44.1 kHz,
0 dBFS
FREQUENCY – kHz
–180
dBr
2.5
5.0
7.5
10.0
12.5
15.0
17.5
–170
–160
–150
–140
–130
–120
–110
20.0
TPC 50. THD + N vs. Frequency Input, 44.1 kHz: 48 kHz,
0 dBFS
FREQUENCY – kHz
–180
dBr
2.5
5.0
7.5
10.0
12.5
15.0
17.5
–170
–160
–150
–140
–130
–120
–110
20.0
TPC 51. THD + N vs. Frequency Input, 48 kHz: 96 kHz,
0 dBFS
FREQUENCY – kHz
–180
dBr
2.5
5.0
7.5
10.0
12.5
15.0
17.5
–170
–160
–150
–140
–130
–120
–110
20.0
TPC 52. THD + N vs. Frequency Input, 96 kHz: 48 kHz,
0 dBFS
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD1895YRS | 制造商:Rochester Electronics LLC 功能描述:192KHZ 8:1 STEREO ASYNC S - Bulk |
| AD1895YRSRL | 制造商:Rochester Electronics LLC 功能描述:192KHZ 8:1 STEREO ASYNC S - Bulk |
| AD1896 | 制造商:AD 制造商全称:Analog Devices 功能描述:192 kHz Stereo Asynchronous Sample Rate Converter |
| AD1896AYRS | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:192KHZ 8:1 STEREO ASYNC SAMPLE RATE CONV - Bulk 制造商:Analog Devices 功能描述:IC STEREO ASR CONVERTER |
| AD1896AYRSRL | 制造商:Analog Devices 功能描述:Sample Rate Converter 28-Pin SSOP T/R |
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