参数资料
型号: DS21Q58L
厂商: Maxim Integrated Products
文件页数: 19/74页
文件大小: 0K
描述: IC TXRX E1 QUAD 3.3V 100-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
产品变化通告: Product Discontinuation 20/Feb/2012
标准包装: 90
功能: 收发器
接口: E1
电路数: 4
电源电压: 3.14 V ~ 3.47 V
电流 - 电源: 230mA
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-LQFP(14x14)
包装: 托盘
包括: AIS 警报检测器和发生器,回送功能,PRBS 发生器 / 检测器,远程检测器和发生器
DS21Q58 E1 Quad Transceiver
26 of 74
Register Name:
CCR7
Register Description:
Common Control Register 7
Register Address:
1F Hex
Bit:
7
6
5
4
3
2
1
0
Name:
MM2
MM1
MM0
136S
ALB
TG703
NAME
BIT
FUNCTION
7
Unused. Should be set = 0 for proper operation.
MM2
6
Monitor Mode 2. Sets the internal linear gain boost (dB) for monitor
mode applications. Please refer to the table below for proper settings.
MM1
5
Monitor Mode 1. Sets the internal linear gain boost (dB) for monitor
mode applications. Please refer to the table below for proper settings.
MM0
4
Monitor Mode 0. Sets the internal linear gain boost (dB) for monitor
mode applications. Please refer to the table below for proper settings.
136S
3
1:1.36 Transformer Select
0 = 1:2 transmit transformer
1 = 1:1.36 or 1:1.6 transmit transformer (see table below for details)
ALB
2
Analog Loopback. Setting this bit internally connects TTIP and TRING to
RTIP and RRING. The external signal at the RTIP and RRING pins is
ignored.
1
Unused. Should be set = 0 for proper operation.
TG703
0
Transmit G.703. This control bit works with CCR5.5 to select G.703
functionality on the transmitter and receiver (Table 8-2). These bits
determine whether the line receiver and transmitter should receive/
transmit a normal E1 signal (Section 6 of G.703) or a 2.048MHz
synchronization signal (Section 10 of G.703).
136S
L2
L1
L0
APPLICATION
TRANSFORMER
1:1.6
TRANSFORMER
1:1.36
1
0
75
W
Rt = 0
W
N.M.
1
0
1
120
W
Rt = 0
W
N.M.
1
0
1
0
75
W
Rt = 2.7
W
Rt = 0
W
1
0
1
120
W
Rt = 3.3
W
Rt = 0
W
1
0
N.M.
1
0
1
N.M.
1
0
N.M.
1
N.M.
N.M. = Not meaningful
MM2
MM1
MM0
INTERNAL LINEAR GAIN BOOST (dB)
0
Normal Operation (no boost)
0
1
Unused
0
1
0
Unused
0
1
Unused
1
0
Unused
1
0
1
Unused
1
0
Unused
1
30 dB
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