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MC33121 Datasheet(PDF) 2 Page - Motorola, Inc

No. de pieza MC33121
Descripción Electrónicos  LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT
Download  32 Pages
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Fabricante Electrónico  MOTOROLA [Motorola, Inc]
Página de inicio  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC33121 Datasheet(HTML) 2 Page - Motorola, Inc

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MC33121
MOTOROLA
2
MAXIMUM RATINGS
Characteristic
Symbol
Value
Unit
Supply Voltage
(with respect to VCC)
(with respect to VDG)
VEE
VDD
– 60, + 0.5
– 0.5, + 7.0
Vdc
Voltage
@ PDI, (with respect to VDG)
@CP, CN
EP, TSI
BP
RSI, EN
BN
Vin
– 0.5, + 7.0
VEE – 0.5, VCC + 0.5
VCC – 7.0, VCC + 0.5
VCC – 14, VCC + 0.5
VEE – 0.5, VCC + 14
VEE – 1.0, VEE + 21
Vdc
Junction Temperature
TJ
150
°C
Storage Temperature
Tstg
– 65 to + 150
°C
* Devices should not be operated at these limits. The “Recommended Operating Conditions” table
provides for actual device operation.
RECOMMENDED OPERATING CONDITIONS
Characteristic
Symbol
Min
Typ
Max
Unit
Supply Voltage
(with respect to VCC)
(with respect to VDG)
VEE
VDD
– 42
+ 4.5
– 24
+ 5.0
– 21.6
+ 5.5
Vdc
(with respect to VCC)
(with respect to VCC)
(with respect to VAG)
VAG
VDG
– 3.0
– 3.0
– 3.0
0
0
0
+ 10
+ 7.0
+ 10
(with respect to VEE)
(with respect to VCC and VAG)
VDD
3.5
47.5
Loop Current
IL
15
50
mA
PDI Input Voltage
VPDI
0
VDD
Vdc
Sink Current
ST1
ST2
IST1L
IST2L
0
0
1.0
1.0
mA
Transmit Signal Level at Tip & Ring
Receive Signal Level at VRX
STX
SRX
– 48
– 48
+ 3.0
+ 3.0
dBm
Loop Resistance
VEE = – 42 V
VEE = – 24 V
RL
0
0
2.0 k
800
External Transistor Beta
Hfe
40
500
A/A
Operating Ambient Temperature (See text for derating)
TA
– 40
+ 85
°C
All limits are not necessarily functional concurrently.
ELECTRICAL CHARACTERISTICS
(VEE = – 24 V, VDD = + 5.0 V, unless otherwise noted. VCC = VAG = VDG = 0 V, TA = 25°C, see Figure 1.)
Characteristic
Symbol
Min
Typ
Max
Unit
POWER SUPPLIES
VEE Current
On Hook (RL > 10 MΩ, VEE = – 42 V)
Off Hook (RL = 0 Ω, VEE = – 42 V)*
VDD Current
On Hook (RL > 10 MΩ, VDD = + 5.5 V)
Off Hook (RL = 0 Ω, VDD = + 5.5 V)
IEEN
IEEF
IDDN
IDDF
– 2.7
– 72
4.0
– 1.0
– 55
1.4
7.0
– 41
2.7
14
mA
VEE Ripple Rejection
f = 1.0 kHz, @ VTX (4–wire)
f = 1.0 kHz, @ Tip/Ring (2–wire)
VDD Ripple Rejection
f = 1.0 kHz, @ VTX (4–wire)
f = 1.0 kHz, @ Tip/Ring (2–wire)
PSRR
40
40
37
37
62
52
52
48
dB
* Includes loop current.


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