L3305_15 [UTC]
LOW VOLTAGE CLASS B AMPLIFIER;
| 型号： | L3305_15 |
| 厂家： | 
Unisonic Technologies |
| 描述： | LOW VOLTAGE CLASS B AMPLIFIER 放大器 |
| 文件： | 总5页 (文件大小：202K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
L3305
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE CLASS B
AMPLIFIER
DESCRIPTION
The UTC L3305 can be operated as a class B amplifier. It can
also operated as a medium power "vari-bias" class A amplifier.
It include a preamplifier with adjustable gain and a power
amplifier.
FEATURES
* Low Operating Voltage range (1V～3V)
* Low Operating current consumption
* Feedback stabilized gain less than 80 dB
* Output power exceeds 140 dBSPL
ORDERING INFORMATION
Ordering Number
L3305G-S14-R
L3305G-P14-R
Package
SOP-14
Packing
Tape Reel
Tape Reel
TSSOP-14
L3305G-S14-R
(1)Packing Type
(1) R: Tape Reel
(2)Package Type
(3)Green Package
(2) S14: SOP-14, P14: TSSOP-14
(3) G: Halogen Free and Lead Free
MARKING
www.unisonic.com.tw
1 of 5
Copyright © 2015 Unisonic Technologies Co., Ltd
QW-R107-052.B
L3305
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
BLOCK DIAGRAM
CURRENT
TRIM
VCC2
11
OUTPUT A
3
OUTPUT B
12
14
2.2k
MIC
BIAS
5
470Ω
VCC1 10
4
13
2
O/P GND
DEC B
9
FEEDBACK
OUTPUT
STAGE
DEC A
PREAMP
I/P
6
PREAMP
7
8
1
PREAMP
O/P
OUTPUT
STAGE I/P
PREAMP
GND
UNISONIC TECHNOLOGIES CO., LTD
2 of 5
QW-R107-052.B
www.unisonic.com.tw
L3305
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCC
RATINGS
3
UNIT
V
Supply Voltage
1
Power Dissipation
PD
200
mW
Operating Temperature Range
Storage Temperature Range
TOPR
TSTG
-10 ~ +60
-20 ~ +70
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
eN
TEST CONDITIONS
MIN
72
TYP MAX UNIT
Input Referred Noise
0.9
0.7
75
2.5
1.2
78
μV
mA
dB
Total Current
ITOT
Voltage Gain
GV
Output = 0.707 VRMS
Total Harmonic Distortion & Noise
Gain Dependence on RB
Input Impedance of Output Amplifier
Stable with Battery Resistance
THD
Output = 0.707 VRMS
1.5
0.02
27
3.0
%
dB/Ω
kΩ
ZIN
18
36
22
Ω
Low
250
12
Hz
Frequency Response (-3 dB at 1 kHz)
High
kHz
Notes: 1. All parameters tested in Test Circuit Fig. 1.
2. Conditions: Supply voltage VB= 1.3 VDC, Temperature ambient = 25℃, Frequency = 1kHz, Noise Filter
Bandwidth at 12 dB/oct (0.2 to 10kHz)
UNISONIC TECHNOLOGIES CO., LTD
3 of 5
QW-R107-052.B
www.unisonic.com.tw
L3305
LINEAR INTEGRATED CIRCUIT
TEST CURICT
VB = 1.30 VDC
10μ
RB
4.7
10μ
14
1
10μ
10μ
13
12
11
10
9
2
3
4
5
6
7
820
VO
0.1μ
VI
20k
UTC L3305
RIN
3.9k
RL= 470Ω
0.1μ
RF
200k
1kHz
220
HAMMOND
99966
10μ
8
0.1μ
VC
10k
0.1μ
0.1μ
Note: 1. Test Circuit Amplifier Gain = 20 Log10 ( VOUT / VIN ) + 40dB
RF
2. Preamp Gain =
set at 35dB
RIN
Fig. 1 Test Circuit
UNISONIC TECHNOLOGIES CO., LTD
4 of 5
QW-R107-052.B
www.unisonic.com.tw
L3305
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
5 of 5
QW-R107-052.B
www.unisonic.com.tw
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