DS26518GNB1+ Maxim Integrated Products, DS26518GNB1+ Datasheet - Page 134
DS26518GNB1+
Manufacturer Part Number
DS26518GNB1+
Description
IC TXRX T1/E1/J1 8PRT 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet
1.DS26518GNB1.pdf
(312 pages)
Specifications of DS26518GNB1+
Number Of Drivers/receivers
8/8
Protocol
T1/E1/J1
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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Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 6: RSYSCLKn Select (RSYSCLKSEL)
Bit 5: TSYSCLKn Select (TSYSCLKSEL)
Bit 4: TCLKn Select (TCLKSEL)
Bits 3 to 0: Clock Out Frequency Select (CLKOSEL[3:0]). CLKO output pin will use MCLK (1.544MHz or
2.048MHz or scaled version) as its reference. The following table shows how to configure for each frequency. For
best jitter performance use a 2.048MHz oscillator for MCLK.
CLKOSEL[3:0]
0 = Use RSYSCLKn pins for each receive system clock (Channels 1–8).
1 = Use BPCLK1 as the master clock for all eight receive system clocks (Channels 1–8).
0 = Use TSYSCLKn pins for each transmit system clock (Channels 1–8).
1 = Use BPCLK1 as the master clock for all eight transmit system clocks (Channels 1–8).
0 = Use TCLKn pins for each of the transmit clock (Channels 1–8).
1 = Use REFCLKIO as the master clock for all eight transmit clocks (Channels 1–8).
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
—
7
0
RSYSCLKSEL
GTCCR3
Global Transceiver Clock Control Register 3
00F4h
0
6
CLKO (kHz)
16384
12352
12288
2048
4096
8192
1544
3088
6176
1536
3072
6144
128
256
32
64
TSYSCLKSEL
5
0
TCLKSEL
134 of 312
4
0
CLKOSEL3
3
0
CLKOSEL2
2
0
CLKOSEL1
1
0
CLKOSEL0
0
0
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