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參數(shù)資料
| 型號： | L9214A |
| 廠商： | Lineage Power |
| 英文描述： | Low-Cost Ringing SLIC(低價格振鈴用戶環(huán)路接口電路) |
| 中文描述： | 低成本振鈴用戶接口（低價格振鈴用戶環(huán)路接口電路） |
| 文件頁數(shù)： | 4/44頁 |
| 文件大?。?/td> | 964K |
| 代理商： | L9214A |
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Preliminary Data Sheet
October 2000
Low-Cost Ringing SLIC
L9214A/G
4
Lucent Technologies 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
Eight operating states
— Forward active
— Polarity reversal active
— On-hook transmission, V
BAT1
applied
— On-hook transmission polarity reversal, V
BAT1
applied
— Scan
— Forward disconnect
— Ring mode, high slope
— Ring mode, 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
— TA-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 and 32-pin PLCC package 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 |
|---|---|
| L9214G | Low-Cost Ringing SLIC(低價格振鈴用戶環(huán)路接口電路) |
| L9215G | Short-Loop Sine Wave Ringing SLIC(短環(huán)路正弦波振鈴用戶接口（SLIC）) |
| L9215A | Short-Loop Sine Wave Ringing SLIC(短環(huán)路正弦波振鈴用戶接口（SLIC）) |
| L9216A | Short-Loop Ringing SLIC with Ground Start(接地起動的短環(huán)路振鈴用戶接口) |
| L9216G | Short-Loop Ringing SLIC with Ground Start(接地起動的短環(huán)路振鈴用戶接口) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L9215A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Sine Wave Ringing SLIC |
| L9216A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Ringing SLIC with Ground Start |
| L9217A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and PPM |
| L9218A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface |
| L9219A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and Dual Current Limit |
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