AD9256 반도체 회로 부품 판매점
DIGITAL AMPLIFIER POWER STAGE
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 Elite Semiconductor |
ESMT/EMP
AD9256
DIGITAL AMPLIFIER POWER STAGE
Features
z 2X12.5W at 10% THD+N into 8Ω BTL at 15V
z 2X8W at 10% THD+N into 8Ω BTL at 12V
z Support single-ended or differential input
z Over-temperature protection
z Over-current protection
z Under-voltage detection
z Error report and thermal warning
z Built-in anti-pop function for AD modulation
z PVDD range from 10.8V to 16.5V
z 24-pin E-TSSOP thermally-enhanced package
Applications
z TV audio
z DVD Receiver
z Home Theaters
Description
The AD9256 is a high efficiency stereo digital
amplifier power stage delivering 85% efficiency.
Devices need two power supplies for the AD9256
operation up to 15V supply for PVDD and 3.3V for
VDD. The AD9256 can deliver 10W/CH output
power into 8 Ω loudspeaker (in BTL operation)
within 1% THD+N at supply 15V.
A built-in anti-pop function can reduce the
speaker’s pop without requiring complex anti-pop
sequence in PWM input, when AD9256 is applied in
AD modulation.
The AD9256 has included protection circuits that
integrated on chip. Protections ensure the AD9256
against the fault conditions that could damage the
AD9256. These safeguards of the AD9256 include
over-temperature, over-current, and under-voltage
protection circuits.
Functional Block Diagram
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: Sep. 2009
Revision:0.1
1/15
ESMT/EMP
Pin Assignments
VDD
GND
OTW
ERROR
INA
INB
INC
IND
SDN
SEL0
SEL1
APOP_CAP
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
E-TSSOP24
PVDDA
OUTA
PGNDA/B
PGNDA/B
OUTB
PVDDB
PVDDC
OUTC
PGNDC/D
PGNDC/D
OUTD
PVDDD
AD9256
Pin Description
PIN NAME
1 VDD
2 GND
3 OTW
4 ERROR
5 INA
6 INB
7 INC
8 IND
9 SDN
10 SEL0
11 SEL1
12 APOP_CAP
13 PVDDD
14 OUTD
15 PGNDC/D
16 PGNDC/D
17 OUTC
18 PVDDC
19 PVDDB
20 OUTB
21 PGNDA/B
22 PGNDA/B
23 OUTA
24 PVDDA
TYP DESCRIPTION
P Power supply for digital circuit
P Ground for digital circuit
O Over temperature warning.
O Error pointer
I PWM input A
I PWM input B
I PWM input C
I PWM input D
I Shutdown (active-low) with soft pulled resistor 100kohm to ground
I Mode select pin 0
I Mode select pin 1
O Anti-pop capacitor
P Power supply for half bridge D
O Half-bridge output D
P Ground for half bridge C/D
P Ground for half bridge C/D
O Half-bridge output C
P Power supply for half bridge C
P Power supply for half bridge B
O Half-bridge output B
P Ground for half bridge A/B
P Ground for half bridge A/B
O Half-bridge output A
P Power supply for half bridge A
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc. Publication Date: Sep. 2009
Revision:0.1
2/15
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PDF 파일 내의 페이지 : 총 2 페이지
제조업체: Elite Semiconductor
( elite )
AD9256 amplifier
데이터시트 다운로드 :
[ AD9256.PDF ]
[ AD9256 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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