파트넘버.co.kr BL8602 데이터시트 PDF


BL8602 반도체 회로 부품 판매점

Low Power Audio Amplifier



SHANGHAI BELLING 로고
SHANGHAI BELLING
BL8602 데이터시트, 핀배열, 회로
www.DataSheet4U.com
BL8602
BL8602 Low Power Audio Amplifier
DESCRIPTION
The BL8602 is a low power audio
amplifier integrated circuit
intended(primarily) for telephone
applications, such as in speakerphones.
It provides
differential speaker outputs to
maximize output swing at low supply
voltages(2.0 V minimum).Coupling
capacitors to the speaker are not
required. The gain of this amplifier is
controlled easily by two external
resistors.
FEATURES
* Wide operating supply voltage:
Vcc=2V~16V
* Low quiescent supply current(Icc=2.2mA,typ)
* Medium output power(Po=250mW at Vcc=6V, RL=32ohm,THD10%)
* Load impedance range : 8~100ohm
* Mute function (Icc=55uA, typ)
* Minimum number of external parts required
* Low distortion
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS(Ta=25)
PARAMETER
SYMBOL
Supply Voltage
Vcc
Output Current
Io
Maximum Input,Ripple Rejection, Mute Pin
Vi(max)
Voltage
Applied Output Voltage( Output Pin When
Vo
Disabled)
Temperature Junction
Tj
VALUE
-1~18
±250
-1~Vcc+1
-1~Vcc+1
-55~150
UNIT
V
MA
V
V
http://www.belling.com.cn
-1-
Total 4 Pages
8/15/2006
Wrote by 2006


BL8602 데이터시트, 핀배열, 회로
PIN CONNECTIONS
BL8602
PIN FUNCTION DESCRIPTION
Symbol Pin Description
FC1 1 Analog ground for amplifiers. A 1.0uF capacitor at this pin (with a
5.0uF capacitor at Pin 2) provides (typically) 52dB of power supply
rejection.Turn-on time of the circuit is affected by the capacitor on
this pin. This pin can be used as an alternate input.
Vin 2 Amplifier input .The input capacitor and resistor set low frequency
rolloff and input impedence. The feedback resistor is connected to
this pin and Vo1.
Vo1 3 Amplifier Output#1. The dc level is (Vcc-0.7V)/2.
Vcc 4 DC supply voltage (+2.0V to +16V) is applied to this pin.
GND 5
Ground pin for the entire circuit
Vo2 6 Amplifier Output#2. This signal is equal in amplitude, but 180°out-
of-phase with that at Vo1. The dc level is (Vcc-0.7V)/2.
CD 7 Chip Disable-Digital input. A Logic “0” (<0.8V) sets normal
operation. A logic “1” (2.0V) sets the power down mode. Input
impedance is nominally 90 kΩ.
FC2 8 A capacitor at this pin increase power supply rejection, and affects
turn-on time. This pin can be left open if the capacitor at FC1 is
sufficient.
RECOMMENDED OPERATION CONDITIONS(Ta=25)
PARAMETER
SYMBOL
VALUE
Supply Voltage
Vcc 2~16
Load Impedance
Peak Load Current
Differental Gain(5KHz Bandwidth)
ZL
IL(peak)
Gv
8~100
±200
0~46
Voltage at Mute
Vi(mute)
0~Vcc
Ambient Temperature
Ta -20~70
UNIT
V
Ω
mA
dB
V
http://www.belling.com.cn
-2-
Total 4 Pages
8/15/2006
Wrote by 2006




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BL8602 amplifier

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