LUCL9215AAU-D AGERE [Agere Systems], LUCL9215AAU-D Datasheet - Page 4

• Manufacturer Part Number: LUCL9215AAU-D
• Description: Short-Loop Sine Wave Ringing SLIC
• Manufacturer: AGERE [Agere Systems]

Short-Loop Sine Wave Ringing SLIC
Features
4
Onboard balanced ringing generation:
— No ring relay
— No bulk ring generator required
— 15 Hz to 70 Hz ring frequency supported
— Sine wave input-sine wave output
— PWM input-sine wave output
— Square wave input-trapezoidal output
Power supplies requirements:
— V
— No –5 V supply required
— No high-voltage positive supply required
Flexible Vcc options:
— 5 V or 3.3 V V
— 5 V or 3.3 V V
Logic-controlled battery switch:
— Minimize off-hook power dissipation
Minimal external components required
11 operating states:
— Forward active, V
— Polarity reversal active, V
— On-hook transmission, V
— On-hook transmission polarity reversal, V
— PPM active forward active, V
— PPM active polarity reversal active, V
— PPM active on-hook transmission, V
— PPM active on-hook transmission polarity rever-
— Scan
— Forward disconnect
— Ring mode
Unlatched parallel data control interface
Ultralow SLIC power:
— Scan 38 mW (V
— Forward/reverse active 57 mW (V
— Scan 27 mW (V
— Forward/reverse active 42 mW (V
Supervision:
— Loop start, fixed threshold with hysteresis
— Ring trip, single-pole ring trip filtering, fixed thresh-
— Common-mode current for ground key applica-
to users
applied
sal, V
old as a function of battery voltage
tions, user-adjustable threshold
CC
talk battery and ringing battery required
BAT1
applied
CC
CC
CC
CC
interchangeable and transparent
operation
BAT2
= 5 V)
= 3.3 V)
applied
BAT1
BAT2
BAT2
applied
applied
applied
CC
CC
BAT1
= 5 V)
= 3.3 V)
BAT2
applied
BAT1
applied
Description
The L9215 is designed to provide battery feed, ringing,
and supervision functions on short plain old telephone
service (POTS) loops. This device is designed for
ultralow power in all operating states.
The L9215 offers 11 operating states. The device
assumes use of a lower-voltage talk battery, a higher-
voltage ringing battery, and a V
The L9215 requires only a positive V
–5 V supply is needed. The L9215 can operate with a
V
ibility. The choice of V
user; the device will function with either supply voltage
connected.
Two batteries are used:
1. A high-voltage ring battery (V
2. A lower-voltage talk battery (V
CC
Adjustable current limit:
— 10 mA to 70 mA programming range
Overhead voltage:
— Clamped typically <51 V differentially
— Clamped maximum <56.5 V single-ended
— Adjustable in active mode
Thermal shutdown protection with hysteresis
Longitudinal balance:
— ETSI/ITU-T balance
— Telcordia Technologies GR-909 balance
Meter pulse compatible:
— Dedicated meter pulse signal input
— On-hook transmission of PPM
ac interface:
— Two SLIC gain options to minimize external com-
— Sufficient dynamic range for direct coupling to
32-pin PLCC package/48-pin MLCC package
90 V CBIC-S technology
V
ring signal amplification and for scan and on-hook
transmission modes. This supply is current limited
to approximately the maximum power ringing cur-
rent, typically 50 mA.
V
of either 5 V or 3.3 V, allowing for greater user flex-
BAT1
BAT2
ponents required for interface to first- or third-gen-
eration codecs
codec output
is used for active mode powering.
is a maximum –75 V. V
CC
voltage is transparent to the
CC
BAT1
BAT1
BAT2
September 2001
supply.
Agere Systems Inc.
).
CC
is used for power
).
supply. No