參數(shù)資料
型號(hào)： DS26324DK
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 40/120頁(yè)
文件大小： 0K
描述： KIT DESIGN FOR G549DS26324
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1
主要目的： 電信，線路接口單元（LIU）
已用 IC / 零件： G549DS26324
已供物品： 板，線纜，電源
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DS26324 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit
26 of 120
Table 5-5. LIU Front-End Values
MODE
COMPONENT
75
COAX, 120 TWISTED PAIR,
100/110
TWISTED PAIR
Tx Capacitance
Ct
560pF typical. Adjust for board parasitics for optimal return loss.
Tx Protection
Dt
1
International Rectifier 11DQ04 or 10BQ060,
Motorola MBR0540T1
Rx Transformer RTR 1:1
TFr
Pulse TX1475
Tx Transformer 1:2
TFt
Halo TG83-S005NU
Rx Transformer RTR 1:2
TFr
Pulse T1124 (0°C to +70°C),
Pulse T1114 (-40°C to 85°C)
Tx Transformer 1:2
TFt
Tx Decoupling (TVDDn)
C1
Common decoupling for all 16 channels = 68
F.
Tx Decoupling (TVDDn)
C2
Recommended decoupling per channel = 0.1
F.
Rx Decoupling (AVDD)
C3
Common decoupling for all 16 channels = 68
F.
Rx Decoupling (AVDD)
C4
Decouple all six pins separately with a 0.1
F capacitor.
Rx Termination
C5
1
Rx capacitance for all 16 channels = 0.1
F.
Rx Termination RTR 1:1
Rt
1
Need two resistors = 60.4
±1%.
Rx Termination RTR 1:2
Rt
1
Need two resistors = 15.0
±1%.
Voltage Protection
TVS1
SGS-Thomson SMLVT 3V3 (3.3V Transient Suppressor)
1Only use if necessary for application.
5.4.3
Transmit Dual-Rail Mode
Transmit dual-rail mode consists of the TPOS, TNEG, and TCLK pins on the system side. NRZ data is sampled on
the falling edge of TCLK as shown in Figure 9-12.
B8ZS or HDB3 encoding is not available in transmit dual-rail mode. The data that appears on the TPOS and TNEG
pins is output on TTIP and TRING without any modification. The Single-Rail Mode Select Register (SRMS) is used
for selection of dual-rail or single-rail mode. The data that arrives at the TPOS and TNEG can be overwritten in the
maintenance mode by setting the BERT Control Register (BTCR).
5.4.4
Transmit Single-Rail Mode
Transmit single-rail mode consists of the TPOS and TCLK pins on the system side (TNEG is not used.). NRZ data
is sampled on the falling edge of TCLK as shown in Figure 9-12. The zero substitution B8ZS or HDB3 encoding is
allowed. The TPOS data is encoded in AMI or B8ZS/HDB3 format on the TTIP and TRING pins after pulse
shaping. The Single-Rail Mode Select Register (SRMS) is used for selection of dual-rail or single-rail mode. The
data that arrives at the TPOS can be overwritten in the maintenance mode by setting in Bit Error Rate Tester
Control Register (BTCR).
5.4.5
Zero Suppression—B8ZS or HDB3
B8ZS coding is available when the device is in T1 mode (selected by TS2, TS1 and TS0 bits in the TS register).
B8ZS/HDB3 coding are enabled by default in single-rail mode. Setting the LCS bit in the LCS Register disables
B8ZS/HDB3. Note that if the individual LIU is configured in E1 mode then HDB3 code substitution will be selected.
Bipolar violations can be inserted via the BEIR register only if B8ZS or HDB3 coding is turned off.
B8ZS substitution is defined in ANSI T1.102 and HDB3 in ITU-T G.703 standards.
5.4.6
Transmit Power-Down
The transmitter will be powered down if the relevant bits in the TPDE are set. The TTIP/TRING outputs will be high
impedance when TPDE is set.
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參數(shù)描述
DS26324G 功能描述:電信集成電路 3.3V E1/T1/J1 16Ch Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 類(lèi)型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
DS26324G+ 功能描述:電信集成電路 3.3V E1/T1/J1 16Ch Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 類(lèi)型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
DS26324GA2 功能描述:電信集成電路 RoHS:否 制造商:STMicroelectronics 類(lèi)型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
DS26324GA2+ 功能描述:電信集成電路 RoHS:否 制造商:STMicroelectronics 類(lèi)型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
DS26324GA2+W 功能描述:電信集成電路 RoHS:否 制造商:STMicroelectronics 類(lèi)型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
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