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參數(shù)資料
| 型號： | LC549PLID |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 79K |
| 代理商： | LC549PLID |
LC549/LV549/LD549 DATA SHEET
High Power Class B
Output Stage
FEATURES
40dB of electrical gain
1.0 to 1.6 VDC supply operating range
current trim capability (R
T
)
high efficiency class B output stage
may be used with a linear or compression preamplfier
STANDARD PACKAGING
8 pin MICROpac (LC549)
8 pin MINIpac
8 pin PLID
(LC549, LD549)
Chip (47 x 40 mils) (LC549, LD549)
DESCRIPTION
The LC/LV/LD549 is an 8 pin, low voltage, push-pull audio
frequency output stage amplifier with a single unbalanced
input. The circuit utilizes two internal negative feedback
loops to stabilize the DC operating point for temperature
stability and to linearize the transfer function over a wide
dynamic range. The circuit operates near ideal class B
conditions resulting in low distortion and very low quiescent
current, required for extended battery life.
The LC549, LV549 and LD549 differ in only one respect;
the LV549 and LD549 are selected devices which are
capable of delivering from 10 mA to 41 mA and from 36 mA
to 75 mA of output current respectively. These values are
the maximum current drawn with both output stage transistors
in saturation. Thus the LD549 is capable of producing a
high output in a low impedance load, the LV549 is selected
to have lower peak currents, extending the life of the
battery.
U.S. Patent No. 4,085,382
Patented in other countries
BLOCK DIAGRAM
4
3
2
7
1
6
5
8
R
T
V
B
OUTPUT 1
OUTPUT 2
INPUT
DEC 1 DEC 2
GND
GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-5946
Japan Branch: A-302 Miyamae Village, 2-10-42 Miyamae, Suginami-ku Tokyo 168, Japan tel. (03) 3334-7700 fax: (03) 3247-8839
Document No. 500 - 25 - 09
Revision Date: January 2001
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