DS21FT42 Maxim Integrated Products, DS21FT42 Datasheet - Page 95

• Manufacturer Part Number: DS21FT42
• Description: IC FRAMER T1 4X3 12CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FT42

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 225mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 300-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RECEIVE SIDE BOUNDARY TIMING
(with elastic store disabled) Figure 23-3
RCHCLK
RECEIVE SIDE 1.544 MHz BOUNDARY TIMING
(with elastic store enabled) Figure 23-4
RSYSCLK
RCHBLK
RFSYNC
RMSYNC
RCHCLK
RCHBLK
RSYNC
RLCLK
RSYNC
RSYNC
RPOS
RNEG
RSER
RLINK
RCLK
RSIG
RSIG
RSER
2
3
1
1
2
3
Notes:
1. There is a 13 RCLK delay from RPOS/RNEG to RSER.
2. RCHBLK is programmed to block channel 24.
3. Shown is RLINK/RLCLK in the ESF framing mode.
Notes:
1. RSYNC is in the output mode (RCR2.3 = 0)
2. RSYNC is in the input mode (RCR2.3 = 1)
3. RCHBLK is programmed to block channel 24
LSB
F
CHANNEL 23
CHANNEL 23
CHANNEL 23
CHANNEL 23
MSB
A
A
B
B
C/A
C/A
CHANNEL 1
LSB MSB
D/B
D/B
LSB MSB
LSB
CHANNEL 24
CHANNEL 24
CHANNEL 24
CHANNEL 24
MSB
A
A
B
B
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C/A
C/A
LSB
D/B
D/B
CHANNEL 2
LSB
F
F
MSB
MSB
CHANNEL 1
CHANNEL 1
CHANNEL 1
CHANNEL 1
LSB MSB
A
A