MC145572APB Freescale Semiconductor, MC145572APB Datasheet - Page 29

• Manufacturer Part Number: MC145572APB
• Description: IC ISDN INTERFACE TXCVER 44-LQFP
• Manufacturer: Freescale Semiconductor
• Type: Transceiverr

Specifications of MC145572APB

• Protocol: RS232
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Drivers/receivers: -
• Lead Free Status / Rohs Status: Not Compliant

LTSFAR: Receive Superframe Alignment.
This pin carries a signal that indicates the Þrst 2B+D frame in a U superframe to be received from the
U-Interface. This signal is not active when the LT side MC145572 is conÞgured for full GCI mode operation.
When the LT side MC145572 is conÞgured for full GCI mode operation, S2-5 in GCI position, this pin
provides the recovered timing clock. The frequency of the clock is selected between 2.048 MHz and
512 kHz by the setting of S2-4, GCI2048/GCI512.
LTGTCLK: Gated IDL Clock Output.
This pin provides a gated clock output. The clock input of an external bit error rate tester should be
connected to this signal.
GND: Ground.
Negative Power Supply.
MC145572EVK
30
Reference
Header
JP10
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
J10
J11
J12
J13
J14
J15
J17
J18
J19
J20
J21
J22
J23
J24
J1
J2
J3
J4
J5
J6
J7
J8
J9
Access to LT Test Signals
Access to LT 2B1Q Signal
Short Positive Side of the Line to Ground
Short Negative Side of the Line to Ground
Tx/Rx Headers
Access to LT TDM Signals
LT RxDATA
LT TxDATA
Access to Multifunction MC145572 Pins
LT CLK
Access to Multifunction Pins
Access to NT 2B1Q Signal
Short Positive Side of the Line to Ground
Short Negative Side of the Line to Ground
Tx/Rx Header Pins
Access to NT TDM Signals
NT RxDATA
Power Connector
NT TxDATA
NT CLK
NT Data Interface Signals
Access to SIT 2B1Q TE
Access to SIT 2B1Q NT
LT PWR CONFIG
Short Line
Short R1
Short LT Sealing Current Blocking Cap
Short R6
Terminate Line with 135 W
Short Line
Short R17
Short N7 Sealing Current Blocking Cap
NT PWR CONFIG
Table 2-5. NT and LT Side MC145572EVK Header List
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Function