DS2174Q/T&R Maxim Integrated Products, DS2174Q/T&R Datasheet - Page 11
![no-image](/images/manufacturer_photos/0/4/417/maxim_integrated_products_sml.jpg)
DS2174Q/T&R
Manufacturer Part Number
DS2174Q/T&R
Description
Communication ICs - Various
Manufacturer
Maxim Integrated Products
Type
Bit Error Rate Testerr
Datasheet
1.DS2174QTR.pdf
(24 pages)
Specifications of DS2174Q/T&R
Mounting Style
SMD/SMT
Operating Supply Voltage
3.3 V
Supply Type
Analog
Package / Case
PLCC-44
Data Rate
622 Mbps
Supply Voltage (max)
3.6 V
Supply Voltage (min)
3 V
Supply Current
50 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3. CONTROL REGISTERS
Control Register 1 (Address = 0h)
SYNCE
SYMBOL
(MSB)
RSYNC
SYNCE
LPBK
QRSS
LSB
LC
TL
PS
RSYNC
SYNC Enable
0 = Auto resync enabled
1 = Auto resync disabled
Initiate Manual Resync Process. A rising edge causes the device to go
out of sync and begin resynchronization process.
Latch Count Registers. A rising edge copies the bit count and bit error
count accumulators to the appropriate registers. The accumulators are
then cleared.
Transmit/Receive Loopback Select
0 = Loopback disabled
1 = Loopback enabled
Zero Suppression Select. Forces a 1 into the pattern whenever the next
14 bit positions are all 0’s. Should only be set when using the QRSS
pattern.
0 = Disable 14 zero suppression
1 = Enable 14 zero suppression per T1.403
Pattern Select
0 = Pseudorandom pattern
1 = Repetitive pattern
LSB/MSB
0 = Repetitive pattern data is transmitted/received MSB first
1 = Repetitive pattern data is transmitted/received LSB first
Transmit Load. A rising edge causes the transmit shift register to be
loaded with the seed value.
LC
LPBK
FUNCTION
11 of 24
QRSS
PS
LSB
(LSB)
TL