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CM8600A 데이터시트 PDF




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부품번호 CM8600A 기능
기능 3 Watt Audio Power Amplifier
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CM8600A 데이터시트, 핀배열, 회로
CM8600A
3 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
General Description
The CM8600 is an audio power amplifier primarily designed for demanding applications in mobile phones and other por-
table communication device applications. It is capable of delivering 1.25 watts of continuous average power to an 8 BTL
load and 2 watts of continuous average power (LD and MH only) to a 4ΩBTL load with less than 1% distortion
(THD+N+N) from a 5.5VDC power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount
of external components. The CM8600 does not require output coupling capacitors or bootstrap capacitors, and therefore is
ideally suited for mobile phone and other low voltage appli- cations where minimal power consumption is a primary re-
quirement.
The CM8600 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either
logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown
pin to be driven in a likewise manner to enable shutdown.
The CM8600 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-
on and turn-off transitions.
The CM8600 is unity-gain stable and can be configured by external gain-setting resistors.
Key Specifications
Ø Improved PSRR at 217Hz & 1KHz
62dB
Ø Power Output at 5.0V,
1% THD+N,
4Ω (LD and MH only)
3W (typ)
Ø Power Output at 5.0V, 1% THD+N, 8Ω 1.25W (typ)
Features
Available in space-saving packages:SOP-8
Ø Ultra low current shutdown mode
Ø Improved pop & click circuitry eliminates noise
during turn-on and turn-off transitions
Ø 1.8 - 8.0V operation
Applications
Ø Mobile Phones
Ø PDAs
Ø Power Output at 3.0V, 1% THD+N, 4Ω 600mW (typ)
Ø Power Output at 3.0V, 1% THD+N, 8Ω 425mW (typ)
Ø Shutdown Current
0.1µA (typ)
Ø No output coupling capacitors, snubber
networks or bootstrap capacitors required
Ø Unity-gain stable
Ø External gain configuration capability
Ø User selectable shutdown High or Low logic Level
Ø Portable electronic device
Connection Diagrams
SOP-8
1 页 共 16




CM8600A pdf, 반도체, 판매, 대치품
CM8600A
VSDIH
VSDIL
VOS
ROUT
Shutdown voltage input high
Shutdown voltage input low
Output offset voltage
Resistor output to GND (Note 10)
VSD MODE=GND
VSD MODE=GND
--
--
1.3 --
V
1.0 --
V
7 50 mV(max)
8.5 9.7 KΩ(max)
7.0 KΩ(min)
Electrical Characteristics VDD = 3V (Notes 1, 2)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25°C.
CM8601
Symbol
Parameter
Conditions
Typical
Limit
(Note 6) (Notes7, 9)
PO
Output power (8Ω)
(4Ω)
THD+N=1%; f=1KHz
THD+N=1%; f=1KHz
425
600
--
--
TWU
Wake-up time
75 --
THD+N+N Total harmonic distortion +Noise
PSRR
Power supply rejection ratio
Po=0.25Wrms; f=1KHz
Vripple =200mV
Input terminated
sine
with
p-p
10Ω
0.1
62
(f=217Hz)
68
(f=1KHz)
--
55
Units
(Limits)
mW
mW
ms
%
dB (min)
Electrical Characteristics VDD = 2.6V (Notes 1, 2)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25°C.
CM8601
Symbol
Parameter
Conditions
Typical
Limit
(Note 6) (Notes7, 9)
IDD
ISD
VSDIH
VSDIL
VSDIH
VSDIL
VOS
ROUT
PO
Quiescent power supply current
Shutdown current
Shutdown voltage input high
Shutdown voltage input low
Shutdown voltage input high
Shutdown voltage input low
Output offset voltage
Resistor output to GND
(Note 10)
Output power (8Ω)
(4Ω)
VIN=0V, IO=0A, No Load
VIN=0V, IO=0A, 8Ω Load
VSD=VSD Mode (Note 8)
VSD MODE=VDD
VSD MODE=VDD
VSD MODE=GND
VSD MODE=GND
--
--
THD+N=1%(max); f=1KHz
THD+N=1%(max); f=1KHz
2.0
3.0
0.1
1.0
0.9
1.2
1.0
5
8.5
300
400
--
--
--
--
--
--
--
50
9.7
7.0
--
--
TWU
THD+N+N
Wake-up time
Total harmonic distortion + Noise
PSRR
Power supply rejection ratio
--
PO=0.5Wrms; f=1KHz
Vripple=200mV sine p-p
Input terminated with 10Ω
70
0.1
51
(f=217Hz)
51
(f=1KHz)
--
--
--
4 页 共 16
Units
(Limits)
mA(max)
mA(max)
uA(max)
V
V
V
V
mV(max)
KΩ(max)
KΩ(min)
W(min)
W
ms
%
dB(min)

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CM8600A 전자부품, 판매, 대치품
CM8600A
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