Line Repeater. XR-T5620 Datasheet

XR-T5620 Repeater. Datasheet pdf. Equivalent


Exar XR-T5620
XR-T5600/T5620
T1, T148C, & 2 M Bitls PCM Line Repeater
GENERAL DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
The XR-T5600/T5620 is a bipolar monolithic repeater IC
designed for PCM carrier systems operating at 1.544 M bit/s
(Tl),2 M bit/s, or 2.37 M bit/s (T148C). It provides all of
the active circuits required for one side of a PCM repeater.
A crystal filter clock extraction version of XR-T5600/
T5620 is available as XR-T5700/T5720.
FEATURES
Single 5.1 V Power Supply
Less than JO ns Sampling Pulse over the Operating Range
Triple Matched ALBO Ports
2 M Bit/s Capability
ALBO GROUND
ALBO
PORT 1
ALBO
PORT 2
ALBO
PORT 3
PREAMP
-VE INPUT
PREAMP
+VE INPUT
PREAMP
-VE OUTPUT
PREAMP
+VE OUTPUT
SUBSTRATE GROUND
ALBO
CONTROL
CLOCK
AMPLIFIER
BIAS
LC TANK
VCC
CLOCK
OUTPUT
PHASE SHIFTED
CLOCK INPUT
-VE DATA
OUTPUT
APPLICATIONS
DIGITAL
GROUND
+VE DATA
OUTPUT
T1 PCM Repeater
T148C PCM Repeater
European 2 M Bit/s PCM Repeater
T1C PCM Repeater (requires external preamplifier)
SYSTEM DESCRIPTION
ORDERING INFORMATION
Part Number
Package
Operation Temperature
XR-T5600
Plastic
_40°C to 85°C
XR-T5620 Plastic or Ceramic
-40°C to 85°C
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
-65°C to +150°C
Operating Temperature
-40°C to +85°C
Supply Voltage
-0.5 to +10 V
Supply Voltage Surge (10 ms)
+25 V
lilput Voltage (except Pin 2,3,4.17)
-0.5 to 7 V
Input Voltage (Pin 2,3,4,17)
-0.5 to +0.5 V
Data Output Voltage. (Pin 10. 11)
20V
Voltage Surge (Pin 5,6,10,11) (10 msec only)
50V
The XR·T5600/T5620 performs most of the functions
required for one side of a PCM repeater operating at 2 M
bit/s or similar baud rate. The integrated circuit amplifies
the received positive and negative pulses and feeds them
into Automatic Line Build-out (ALBO), clock and data
threshold detectors, see Figure 1. The ALBO threshold
detector ensures that the received pulses at Pins 7 and 8
have the correct ampl itude and shape. Th is is carried out by
controlling the gain and frequency shaping of the ALBO
network with three variable impedance ALBO ports.
The clock threshold detector extrar.ts timing information
from the pulses received at Pins 7 and 8 and passes it into
the external tank coil at Pin 15. The sinusoidal-type wave-
form is amplified into a square wave at Pin 13, and forward-
ed through an external phase shift network into Pin 12.
This waveform provides the data sampling pulse which
opens latches into which the dat) from the data thr8shold
detectors is passed. The resulting pulses are stored for half
a bit period (normally 488 ns) in the latches. They appear
as half-width output pulses at Pins 10 and 11.
2-40


XR-T5620 Datasheet
Recommendation XR-T5620 Datasheet
Part XR-T5620
Description PCM Line Repeater
Feature XR-T5620; XR-T5600/T5620 T1, T148C, & 2 M Bitls PCM Line Repeater GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAG.
Manufacture Exar
Datasheet
Download XR-T5620 Datasheet




Exar XR-T5620
XR-T5600
ELECTRICAL CHARACTERISTICS
Test Conditions: TA = 25°C, VCC = 5.1 V ± 5%, unless specified otherwise (see Figure 1).
PARAMETERS
PINS MIN. TYP. MAX. UNIT
CONDITIONS
Supply Current
14 22 30 mA
Data Output Leakage Current 10,11
0 100 jJ.A
ALBO Port Off Voltage
2,3.4
0 0.1 V
Amplifier Pin Voltage
5,6),8 2.4 2.9 3.4
V
Vpull-up = 15 V, Vcc = 5.35 V
DYNAMIC CHARACTERISTICS AMPLIFIER
Output Offset Voltage
ACGin@lMHz
Input Impedance
Output Impedance
-50 0
50 mV
47 50 53 dB
20 kn
200 n
Rs = 8.2 kn
ALBO
A LBO Off Impedance
ALBO On Imepdance
20 25 kn
25 n
THRESHOLDS
ALBO Threshold
1.4 1.5 1.6
V
Clock Threshold as % of ALBO Threshold 68
80 %
DATA Threshold as % of ALBO Threshold 42
49 %
Clock Drive Current
0.7 1.4 mA
At Vo = VALBO Threshold
OUTPUT STAGES
Output Pulse Rise Time
Output Pulse Fall Time
Output Pulse Width
Output Pulse Width Differential
Buffer Gate Voltage (Low)
Buffer Gate Voltage Differential
40
40
224 244 264
-10 +10
0.65
0.95
-0.15
0.15
ns
ns
ns
ns
V
V
RL = 130n, Vpull-up = 5.1 ± 5%
2-41



Exar XR-T5620
XR-T5620
ELECTRICAL CHARACTERISTJCS
Test Conditions: Unless otherwise stated, all characteristics shall apply over the operating temperature range of -40°C to +85°C
with Vcc = 5.1 V ± 5%, all voltages referred to ground = 0 V.
SYMBOL
PARAMETERS PINS MIN
TYP MAX UNIT CONDITIONS
GENERAL (Ref. Figure 2)
IS Supply Current
14
22 30 mA
ILD Data Output
Leakage Current
10,11
6 100 p.A From Vs (See Note 1)
Amplifier Pin Voltages
5,6,7,8 2.4
2.9
3.4
V
ALBO Ports Off Voltage
2,3.4
0 0.1 V
Note: 1. Vs = 15 V, VCC = 5.35 V
AMPLIFIER (Ref. Figure 2, Only Pins 1,9,10... 18 connected)
Input Offset Voltage
5&6
-10
Input Bias Current
5&6
0
Input Offset Current
5&6
-1
Output Offset Voltage
7&8
-50
Common Mode
Rejection Ratio
Output Voltage Swing
7&8
7&8
30
2.2
0
+10 mV RS = 8.2 kn
(See Note 1)
5 p.A RS = 8.2 kn
(See Note 1)
1 p.A RS = 8.2 kn
(See Note 1)
50 mV RS - 8.2 kn
(See Note 1)
dB Vcc ±10%
V
Note: 1. RS = Source Resistance
CLOCK AMPLIFIER (Ref. Figure 2, Disconnect Pin 15 from Pin 16)
Input Offset Voltage
15 & 16 0.5
Input Bias Current
Max. Output Voltage
Min. Output Voltage
Max./Min. Output
Voltage Difference
15 & 16
13
13
-
0.7
0.7
0.7
6 mV RS = 10 kn
(See Note 1)
10 p.A T = 25°C
V
V
50 mV
Notes:
1. RS = Source resistance, Pin 15 positive with respect to Pin 16
2. Pin 15 = Pin 16 = 3.6 V
3. Pin15=2.6V,Pin16=3.6V
4. Pin 15 = 4.6 V, Pin 16 = 3.6 V
5. Calculation only
2-42





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