参数资料
型号: DS26334GN
英文描述: 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interface Unit
中文描述: 3.3伏,16路,E1/T1/J1短,长途线路接口单元
文件页数: 21/115页
文件大小: 756K
代理商: DS26334GN
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
21 of 115
Figure 5-5. Pre-Scaler PLL and Clock Generator
Pre
Scaler
PLL
CLK
GEN
E1CLK
T1CLK
FREQS
MPS1..0
PLLE
RLCK9..16
PCLKS2..0
PCLKS2..0
PCLKI1..0
RLCK1..8
PLLE
CLKA3..0
CLKA
LOS16
RLOS16
CLKAE
LOS15
RLOS15
TECLKE
TECLK
TECLKS
MCLK
5.4 Transmitter
NRZ data arrives on TPOS and TNEG on the Transmit System Side. The TPOS and TNEG data is sampled on the
falling edge of TCLK.
The data is encoded with HDB3 or B8ZS or NRZ encoding when single-rail mode is selected (only TPOS as the
data source). When in single-rail mode only, BPV errors can be inserted for test purposes by register
BEIR
. Pre-
encoded data is expected when dual-rail mode is selected. The encoded data passes through a jitter attenuator if it
is enabled for the Transmit path. A digital sequencer and DAC are used to generate Transmit waveforms compliant
with T1.102 and G.703 Pulse Masks.
The line driver supports internal impedance matching for 75 , 100 , 110 , and 120 modes.
The DS26334 drivers have short and open circuit driver fail monitor detection. There is an OE pin that can high
impedance the transmitter outputs for Protection Switching when low. The individual transmitters are by default in
high impedance. Register OE is used to enable the transmitters individually when the OE pin is high. The DS26334
has to have the transmitter’s enabled by setting the register and then pulling the OE pin high. The registers that
control the Transmitter operation are shown in
Table 5-2
.
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相关代理商/技术参数
参数描述
DS26334GN+ 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA2 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA2+ 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA3 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray
DS26334GNA3+ 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray