DS26528G+ Maxim Integrated Products, DS26528G+ Datasheet - Page 28
![IC TXRX T1/E1/J1 OCT 256-CSBGA](/photos/6/50/65053/256-csbga_21-0315_sml.jpg)
DS26528G+
Manufacturer Part Number
DS26528G+
Description
IC TXRX T1/E1/J1 OCT 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.DS26528G.pdf
(276 pages)
Specifications of DS26528G+
Number Of Drivers/receivers
4/4
Protocol
IEEE 1149.1
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
256-CSBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Figure 8-1. Backplane Clock Generation
The reference clock for the backplane clock generator can be as follows:
•
•
•
•
•
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
28 of 276
BFREQSEL
DS26528 Octal T1/E1/J1 Transceiver
BPCLK1:0
GEN
CLK
TSSYNCIO
REFCLKIO
BPCLK
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