參數(shù)資料
型號： IDT821034
廠商： Integrated Device Technology, Inc.
元件分類： Codec
英文描述： QUAD PCM CODEC WITH PROGRAMMABLE GAIN
中文描述： 四的PCM編解碼器，具有可編程增益
文件頁數(shù)： 15/52頁
文件大小： 609K
代理商： IDT821034
15
INDUSTRIAL TEMPERATURE RANGES
IDT82V2058 OCTAL E1 SHORT HAUL LINE INTERFACE UNIT
-300
-200
-100
100
200
300
Tim0
-0.20
0.00
0.20
0.40
0.60
0.80
1.00
1.20
N
Figure - 9. CEPT Waveform Template
sive zero and code violation are reported respectively. When
configured in AMI decoding mode, only bipolar violation can be re-
ported.
The error detection is available only in single rail mode where the
pin RDNn/CVn is used as error report output (CVn pin).
The configuration and report status of error detection are summa-
rized in
Table-6
.
TRANSMITTER
In transmit path, data in NRZ (non return to zero) format are
clocked into the device on TDn and encoded by AMI or HDB3 line
code rules when single rail mode is configured or pre-encoded data
in NRZ format are input on TDPn and TDNn when dual rail mode is
configured. The data are sampled into the device on falling edges of
TCLKn. Jitter attenuator, if enabled, is provided with a FIFO which the
data to be transmitted are passing through. A low jitter clock is
generated by an integral digital phase-locked loop and is used to
read data from the FIFO. The shape of the pulses should meet the
E1 pulse template after the signal is passed through different cable
types. Bipolar violation, for diagnosing, can be inserted on pin BPVIn
if AMI line code rule is enabled.
Waveform Shaper
E1 pulse template, specified in ITU-T G.703, is shown in
Figure-9
.
The device has built-in transmit waveform templates for cable of 75
or 120
.
The built-in waveform shaper use an internal high frequency clock
which is 16XMCLK as clock reference. This function will be bypassed
when MCLK is unavailable.
Figure - 7. AMI Bipolar Violation
Bipolar Violation detected
Bipolar violation
CLK
RTIP
RRING
RD
CV
1
2
3
4
5
V
6
7
1
2
3
4
5
6
V
Figure - 8. HDB3 Code Violation & Excessive Zero
Code violation detected
Excessive zero detected
CLK
RTIP
RRING
RD
CV
Code violation
4 consecutive zeros
1
2
3
4
V
V
5
6
1
2
3
4
5
6
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT821034DN 功能描述:IC PCM CODEC QUAD MPI 52-PQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
IDT821034DNG 功能描述:IC PCM CODEC QUAD MPI 52-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
IDT821054 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
IDT821054A 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
IDT821054APF 功能描述:IC PCM CODEC QUAD MPI 64-TQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR)
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