- 您现在的位置：买卖IC网 > PDF目录9973 > IDT82V2041EPP8 (IDT, Integrated Device Technology Inc)IC LIU T1/J1/E1 1CH 44-TQFP PDF资料下载
参数资料
| 型号： | IDT82V2041EPP8 |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 13/75页 |
| 文件大小： | 0K |
| 描述： | IC LIU T1/J1/E1 1CH 44-TQFP |
| 标准包装： | 1,250 |
| 类型： | 线路接口装置（LIU） |
| 规程： | E1 |
| 电源电压： | 3.13 V ~ 3.47 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LQFP |
| 供应商设备封装： | 44-TQFP（10x10） |
| 包装： | 带卷 (TR) |
| 其它名称： | 82V2041EPP8 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页
IDT82V2041E
SINGLE CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
Functional Description
20
December 9, 2005
3.3.4
TRANSMIT PATH LINE INTERFACE
The transmit line interface consists of TTIP pin and TRING pin. The
impedance matching can be realized by the internal impedance matching
circuit or the external impedance matching circuit. If T_TERM[2] is set to
‘0’, the internal impedance matching circuit will be selected. In this case,
the T_TERM[1:0] bits (TERM, 03H) can be set to choose 75
, 100 , 110
or 120 internal impedance of TTIP/TRING. If T_TERM[2] is set to ‘1’,
the internal impedance matching circuit will be disabled. In this case, the
external impedance matching circuit will be used to realize the impedance
matching. For T1/J1 mode, the external impedance matching circuit for the
transmitter is not supported. Figure-8 shows the appropriate external com-
ponents to connect with the cable. Table-10 is the list of the recommended
impedance matching for transmitter.
In hardware control mode, TERM pin can be used to select impedance
matching for both receiver and transmitter. If TERM pin is low, external
impedance network will be used for impedance matching. If TERM pin is
high, internal impedance will be used for impedance matching and
PULS[3:0] pins will be set to select the specific internal impedance. Refer
to 5 Hardware Control Pin Summary for details.
TheTTIP/TRINGpinscan also beturned intohigh impedanceby setting
the THZ bit (TCF1, 06H) to ‘1’. In this state, the internal transmit circuits are
still active.
In hardware control mode, TTIP/TRING can be turned into high imped-
ance by pulling THZ pin to high. Refer to 5 Hardware Control Pin Summary
for details.
Besides, in the following cases, both TTIP/TRING pins will also become
high impedance:
Loss of MCLK;
Loss of TCLK (exceptions: Remote Loopback; Transmit internal
pattern by MCLK);
Transmit path power down;
After software reset; pin reset and power on.
Note: The precision of the resistors should be better than ± 1%
3.3.5
TRANSMIT PATH POWER DOWN
ThetransmitpathcanbepowereddownbysettingtheT_OFFbit(TCF0,
05H) to ‘1’. In this case, the TTIP/TRING pins are turned into high imped-
ance.
In hardware control mode, the transmit path can be powered down by
pulling both PATT1 and PATT0 pins to high. Refer to 5 Hardware Control
Pin Summary for details.
Table-10 Impedance Matching for Transmitter
Cable Configuration
Internal Termination
External Termination
T_TERM[2:0]
PULS[3:0]
RT
T_TERM[2:0]
PULS[3:0]
RT
E1/75
000
0000
0
1XX
0001
9.4
E1/120
001
0001
T1/0~133 ft
010
0010
-
T1/133~266 ft
0011
T1/266~399 ft
0100
T1/399~533 ft
0101
T1/533~655 ft
0110
J1/0~655 ft
011
0111
相关PDF资料 |
PDF描述 |
|---|---|
| VE-B5B-IV-F1 | CONVERTER MOD DC/DC 95V 150W |
| VE-26W-IX-B1 | CONVERTER MOD DC/DC 5.5V 75W |
| MS3100E28-10S | CONN RCPT 7POS WALL MNT W/SCKT |
| IDT72605L25PF | IC FIFO BI SYNC 256X18 64-TQFP |
| MS3100E22-20P | CONN RCPT 9POS WALL MNT W/PINS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IDT82V2041EPPG | 功能描述:IC LIU T1/J1/E1 1CH 44-TQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| IDT82V2041EPPG8 | 功能描述:IC LIU T1/J1/E1 1CH 44-TQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| IDT82V2042EPF | 功能描述:IC LIU T1/J1/E1 2CH SHORT 80TQFP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| IDT82V2042EPF8 | 功能描述:IC LIU T1/J1/E1 2CH SHORT 80TQFP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| IDT82V2042EPFG | 功能描述:IC LIU T1/J1/E1 2CH SHORT 80TQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。