DS26528 Maxim Integrated Products, DS26528 Datasheet - Page 28

• Manufacturer Part Number: DS26528
• Description: Network Controller & Processor ICs Octal E1-T1-J1 Singl e-Chip Transceiver (
• Manufacturer: Maxim Integrated Products

Specifications of DS26528

• Product: Framer
• Number Of Transceivers: 8
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 875 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: TE-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 8-1. Backplane Clock Generation
The reference clock for the backplane clock generator can be as follows:
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External Master Clock. A prescaler can be used to generate T1 or E1 frequency.
External Reference Clock REFCLKIO. This allows for multiple DS26518s to use the backplane clock from
a common reference.
Internal LIU recovered RCLKs 1 to 8.
The clock generator can be used to generate BPCLK1 of 2.048MHz, 4.096MHz, 8.192MHz, or 16.384MHz
for the IBO.
If MCLK or RCLK is used as a reference, REFCLKIO can be used to provide a 2.048MHz or 1.544MHz
clock for external use.
MCLK
Scaler
PLL
Pre
REFCLKIO
MCLKT1
MCLKE1
RCLK1
RCLK2
RCLK3
RCLK4
RCLK5
RCLK6
RCLK7
RCLK8
BPREFSEL3:0
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BFREQSEL
DS26528 Octal T1/E1/J1 Transceiver
BPCLK1:0
GEN
CLK
TSSYNCIO
REFCLKIO
BPCLK