参数资料
型号: DS26504LNB2+
厂商: Maxim Integrated Products
文件页数: 44/129页
文件大小: 0K
描述: IC T1/E1/J1 64KCC ELEMENT 64LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
功能: BITS 元件
接口: 64KCC,E1,T1
电路数: 1
电源电压: 3.14 V ~ 3.47 V
电流 - 电源: 150mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 管件
包括: *
其它名称: 90-26504+NB2
DS26504 T1/E1/J1/64KCC BITS Element
21 of 129
4.6 Line Interface
NAME
TYPE
FUNCTION
MCLK
I
Master Clock Input. A (50ppm) clock source. This clock is used internally for
both clock/data recovery and the jitter attenuator for both T1 and E1 modes. A
quartz crystal can be applied across MCLK and XTALD rather than the clock
source. The clock rate can be 16.384MHz, 8.192MHz, 4.096MHz, or
2.048MHz. When using the DS26504 in T1-only operation, a 1.544MHz
(50ppm) clock source can be used.
RTIP
I
Receive Tip. Analog input for clock recovery circuitry. This pin connects via a
1:1 transformer to the network. See the Line Interface Unit section for details.
RRING
I
Receive Ring. Analog input for clock recovery circuitry. This pin connects via
a 1:1 transformer to the network. See the Line Interface Unit section for details.
TTIP
O
Transmit Tip. Analog line-driver output. This pin connects via a 1:2 step-up
transformer to the network. See the Line Interface Unit section for details.
TRING
O
Transmit Ring. Analog line-driver output. This pin connects via a 1:2 step-up
transformer to the network. See the Line Interface Unit section for details.
THZE
I
Transmit High-Impedance Enable. When high, TTIP and TRING will be
placed into a high-impedance state.
4.7 Power
NAME
TYPE
FUNCTION
DVDD
Digital Positive Supply. 3.3V ±5%. Should be tied to the RVDD and TVDD
pins.
RVDD
Receive Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD and
TVDD pins.
TVDD
Transmit Analog Positive Supply. 3.3V ±5%. Should be tied to the DVDD
and RVDD pins.
DVSS
Digital Signal Ground. 0.0V. Should be tied to the RVSS and TVSS pins.
RVSS
Receive Analog Signal Ground. 0.0V. Should be tied to the DVSS and TVSS
pins.
TVSS
Transmit Analog Signal Ground. 0.0V. Should be tied to the DVSS and
RVSS pins.
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