xrt56l22 Exar Corporation, xrt56l22 Datasheet - Page 3

• Manufacturer Part Number: xrt56l22
• Description: Low Power Repeater/receiver
• Manufacturer: Exar Corporation

PIN CONFIGURATION
PIN DESCRIPTION
Pin #
10
12
13
14
15
16
17
18
11
1
2
3
4
5
6
7
8
9
Rev. 1.02
CLOCK O/P
REG CONT
AMP + O/P
AMP - O/P
ANA GND
AMP + I/P
ALBO FIL
AMP - I/P
DIG GND
LC BIAS
Symbol
ALBO 1
ALBO 2
PHASE
DATA+
DATA-
CONT
VREF
LC I/P
V
CC
AMP +O/P
ANA GND
AMP -O/P
DIG GND
AMP +I/P
AMP-I/P
ALBO1
ALBO2
DATA+
18 Lead PDIP, CDIP (0.300”)
Description
Ground for Analog Sections of IC and Substrate.
ALBO PORT 1 Output. Port impedance varies between 25W and 20kW proportional to input signal
level.
ALBO PORT 2 Output. Similar to pin 2.
Inverting Input of Signal Preamp RIN > 20kW.
Non-Inverting Input of Signal Preamp. RIN > 20kW.
Inverting Output of Signal Pre-amp. Rout < 200W. DC level typically 3.2V.
Non-inverting Output of Signal Pre-amp. Similar to pin 6.
Ground for Digital Portion of IC.
Positive Data Driver Output (Open Collector). V
Negative Data Driver Output (Open Collector). V
Phase Shifted Clock Output (Open Collector). Decouple to GND with 0.1mF if not required. With
Rpull-up = 1K, V
Input Pin of Shunt Regulator and Supply Pin for IC. For voltage feed applications the regulator
must be disabled and a 5V + 5% supply connected. For line feed a current of 48-120mA is required.
ICC < 8.75mA @ RON, ALBO = 25W typical.
Output Voltage of Internal Reference of Shunt Regulator. For parallel operation of regulators
should be tied to pin 13 of 2nd T56L22 device. V
0.1mF.
Input Voltage of Shunt Regulator Amp. To inhibit regulator, pin should be tied to ground. For line
feed operation decouple to GND with 0.1mF. For parallel operation of regulators tie pin 14 of 2nd
T56L22 device. VREG approximately V
Phase Shift Adjust Input. A resistor to GND from the pin allows adjustment of phase shift from 905
to approximately 05. RP typical 1.8K to 1K. Vphase typical 340mV.
Clock Amplifier Input. Pulsed with current from clock comparator. Connect LC tank between 16, 17
for clock recovery. Ickon = —110mA typical.
Clock Amplifier Reference Voltage. VLC = 3.6V typical.
Control Pin for ALBO Ports. Voltage developed across a capacitor on this pin defines ALBO on
impedance VALBO = 1.5V typical.
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
OL
< 1.1V @ I
ALBO FIL
LC BIAS
LC I/P
PHASE CONT.
REG CONT.
V
V
CLOCK O/P
DATA-
REF
CC
OUT
= 4mA.
3
REF
.
AMP +O/P
ANA GND
AMP -O/P
DIG GND
AMP +I/P
AMP-I/P
ALBO1
ALBO2
DATA+
REF
18 Lead SOIC (Jedec, 0.300”)
OL
OL
approxi-mately V
< 0.95V @ l
< 0.95V @ l
1
2
3
4
5
6
7
8
9
OUT
OUT
18
17
16
15
14
13
12
10
CC
11
= 32mA.
XR-T56L22
= 32mA.
/2. Decouple to GND with
ALBO FIL
LC BIAS
LC I/P
PHASE CONT.
REG CONT.
VREF
V
CLOCK O/P
DATA-
CC