DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 237

• Manufacturer Part Number: DS21455
• Description: Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
• Manufacturer: Maxim Integrated Products

Specifications of DS21455

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

Figure 36-10. Transmit Side 2.048MHz Boundary Timing (With Elastic Store
Enabled)
NOTES:
1) TSER data in channels 1, 5, 9, 13, 17, 21, 25, and 29 is ignored.
2) TCHBLK is programmed to block channel 31 (if the TPCSI bit is set, then the signaling data at TSIG
3) TCHBLK is forced to one in the same channels as TSER is ignored (Note 1).
4) The F-bit position for the T1 frame is sampled and passed through the transmit side elastic store into
will be ignored).
the MSB bit position of channel 1. (Normally the transmit side formatter overwrites the F-bit position
unless the formatter is programmed to pass-through the F-bit position).
TCHBLK
TSYSCLK
TSSYNC
TCHCLK
TSER
TSIG
2,3
1
CHANNEL 31
CHANNEL 31
A
B
C/A D/B
LSB MSB
237 of 270
CHANNEL 32
CHANNEL 32
A
B
C/A D/B
LSB
F
4
CHANNEL 1
CHANNEL 1
A