參數(shù)資料
型號： LUCL9214GRG-D
英文描述： Planar E Core
中文描述： 低成本振鈴用戶接口
文件頁數(shù)： 4/46頁
文件大?。?/td> 790K
代理商： LUCL9214GRG-D
Preliminary Data Sheet
October 2001
Low-Cost Ringing SLIC
L9214A/G
4
Agere Systems Inc.
Features
I
Onboard balanced trapezoidal ringing generation,
40 Vrms, 1.2 crest factor:
—
3 REN ring load (2330
+ 24
μ
F), 600
loop
—
2 REN ring load (3500
+ 16
μ
F), 1000
loop
—
2 REN ring load (3500
+ 1.8
μ
F), 500
loop
—
No ring relay
—
No bulk ring generator required
—
15 Hz to 70 Hz ring frequency supported
I
Power supplies requirements:
—
V
CC
talk battery and ringing battery required
—
No
–
5 V supply required
—
No high-voltage positive supply required
I
Flexible Vcc options:
—
3.3 V or 5 V V
CC
operation
—
3.3 V or 5 V V
CC
interchangeable and transparent
to users
I
Power control options:
—
Automatic battery switch
—
Power control resistor
I
Minimal external components required
I
Ten operating states:
—
Forward active, fast polarity reversal
—
Reverse active, fast polarity reversal
—
Forward active, slow polarity reversal
—
Reverse active, slow polarity reversal
—
Scan
—
Disconnect
—
Ringing, line forward with high slope
—
Ringing, line reverse with high slope
—
Ringing, line forward with low slope
—
Ringing, line reverse with low slope
I
Unlatched parallel data control interface
I
Low SLIC power:
—
Scan 24 mW (V
CC
= 5.0 V)
—
Forward/reverse active 148 mW (V
CC
= 5.0 V)
—
Scan 17 mW (V
CC
= 3.3 V)
—
Forward/reverse on-hook 135 mW (V
CC
= 3.3 V)
I
Supervision:
—
Loop start, fixed threshold with hysteresis
—
Ring trip filtering, fixed threshold not a function of
battery voltage, user adjustable with an external
resistor
—
Common-mode current for ground key applica-
tions, user-adjustable threshold
I
Adjustable current limit:
—
10 mA to 45 mA programming range at 5 V Vcc
—
10 mA to 35 mA programming range at 3.3 V Vcc
I
Overhead voltage:
—
Automatically adjusted in active mode
—
Clamped <56.5 V in scan and on-hook modes
I
Thermal shutdown protection with hysteresis
I
Longitudinal balance:
—
ETSI/ITU-T balance
—
GR-909
I
Meter pulse compatible
I
ac interface:
—
Two SLIC gain options to minimize external com-
ponents required for interface to first- or third-gen-
eration codecs
—
Sufficient dynamic range for direct coupling to
codec output
I
28-pin SOG, 32-pin PLCC, and 48-pin MLCC pack-
age options
I
90 V CBIC-S technology
Description
The L9214 is designed to provide battery feed, ringing,
and supervision functions on short and medium plain
old telephone service (POTS) loops. Supported round-
trip loop length is up to 1000
of wiring resistance plus
handset or ringing load. This device is designed to min-
imize power in all operating states.
The L9214 offers eight operating states. The device
assumes use of a lower-voltage talk battery, a higher-
voltage ringing battery and a single V
CC
supply.
The L9214 requires only a positive V
CC
supply. No
–
5 V supply is needed. The L9214 can operate with a
V
CC
of either 5.0 V or 3.3 V, allowing for greater user
flexibility. The choice of V
CC
voltage is transparent to
the user; the device will function with either supply volt-
age connected.
Two batteries may be used:
1. A high-voltage ring battery (V
BAT1
). V
BAT1
is a maxi-
mum
–
70 V and is used for power ringing, scan, and
on-hook transmission modes. This supply is current
limited to the maximum power ringing current of
approximately 90 mApeak.
2. A lower-voltage talk battery (V
BAT2
). V
BAT2
is nor-
mally used for active mode powering.
Alternatively, operation may be from a single high-volt-
age battery supply with a power control resistor to
reduce the power dissipation in the SLIC.
相關PDF資料
PDF描述
LUCL9214GRG-DT Low-Cost Ringing SLIC
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相關代理商/技術參數(shù)
參數(shù)描述
LUCL9214GRG-DT 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC
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LUCL9215GAU-D 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Sine Wave Ringing SLIC
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