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PDF NCP2704 Data sheet ( Hoja de datos )
| Número de pieza | NCP2704 | |
| Descripción | Audio Management Integrated Circuit | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NCP2704 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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NCP2704
Audio Management
Integrated Circuit with
2.8 W Class D and LongPlay
True Ground Headphone
Amplifier
http://onsemi.com
The NCP2704 is a cost effective audio subsystem designed for
portable applications such as cellular phones and portable media
MARKING
DIAGRAM
player. It has been designed to cover the power audio requirements in
portable equipment: including a high fidelity Class D speaker
amplifier and a Class G equivalent LongPlay true ground headphone
amplifier. This patented headphone amplifier circuitry allows the
removal of the bulky output capacitors and minimize audio playback
current consumption with minimum external components. In addition
the user can set the output swing to have enough output dynamic even
A1
20 PIN CSP
FC SUFFIX
CASE 499BH
NCP2704
AYWW
G
when a damping resistor is added.
Through a flexible I2C interface, NCP2704 can support both single
ended and differential types of analog input signal. In both cases, it
offers a zero pop noise signature. The same interface allows a user
defined architecture with an input control, highly accurate gain setting
capability from −60 dB to +12 dB and output control. In addition
NCP2704 = Specific Device Code
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
NCP2704 offers the possibility to reduce the EMI perturbation by
lowering the rise and fall times of the Class D outputs (software
PINOUT
programmable). The Loudspeaker also amplifier includes an AGC
which performs two functions: limiter and non−clipping.
Features
• Flexible MUX Capability and Volume Control
♦ Separated Mixer Control Between Louspeaker and Headset
♦ Support Either Differential or Single−ended Input
• High Sound Quality
♦ −100 dB PSRR on Headphone Amplifier
♦ −80 dB PSRR on Loudspeaker Amplifier
♦ 0.02% THD+N at 1 kHz on Headset Amplifier
♦ 0.1% THD+N at 1 kHz on Loudspeaker Amplifier
A1
IN2B
B1
IN2A
C1
NC
D1
LPN
A2
IN1B
B2
IN1A
C2
GND
D2
PVDD
A3 A4 A5
HSR HSL PVM
B3
GND
B4
I2CEN
B5
C1N
C3
SCL
C4
SDA
C5
GND
D3 D4 D5
LPP HSVDD C1P
• Low EMI Filterless Class D Loudspeaker Amplifier, Programmable
High Efficiency or Low EMI Mode
• Programmable AGC: Non−Clipping or Power Limit (Loudspeaker
ORDERING INFORMATION
Output)
See detailed ordering and shipping information in the package
• Long Play True Ground Headphone Amplifier,
• 20−BumpdimCehnispionSscsaelcetioPnaocnkpaaggee (227.o5f txhis2d.0atamsmhe)et.
Programmable Output Swing (Up to 5 Vpp)
• I2C Control
• Software Shutdown
• No Pop and Click Noise
• TDMA Noise Free
• This is a Pb−Free Device
Typical Applications
• Cellular Phones
• Portable Media Player
• Thermal and Short−Circuit Protection
© Semiconductor Components Industries, LLC, 2010
November, 2010 − Rev. 0
1
Publication Order Number:
NCP2704/D
1 page  
NCP2704
ELECTRICAL CHARACTERISTICS Min and Max Limits apply for TA between −40°C to +85°C and TJ up to + 125°C for PVDD
between 2.5 V to 5.5 V (Unless otherwise noted). Typical values are referenced to TA = + 25°C and PVDD = 3.6 V, HSVDD = 1.8 V.
Symbol
Parameter
Conditions
Min Typ Max Unit
GENERAL
PVDD
HSVDD
ISD
Supply voltage range
Supply voltage range
Shutdown current
IQ Quiescent current
RIN
CMRR
Input resistance
Common mode rejection ratio
Soft shutdown
PVDD
HSVDD
Headset mode at Ta = 25°C,
PVDD = 3.6 V, HSVDD = 1.8 V
PVDD
HSVDD
Speaker mode at Ta = 25°C,
PVDD = 3.6 V, HSVDD = 1.8 V
PVDD
HSVDD
Headset + Speaker mode at Ta =
25°C, PVDD = 3.6 V, HSVDD = 1.8 V
PVDD
HSVDD
F = 1 kHz, differential input mode
2.5
1.6
18
5.5 V
3.6 V
mA
1
0.1
mA
0.1 0.25
2 2.5
2.2 2.8
1.8 2.1
2.2 2.8
2.8 3.3
20 24
−80
kW
dB
TSD
TSD_hyst
Thermal shutdown temperature
Thermal shutdown temperature
hysteresis
160 °C
20 °C
UVLO1
Undervoltage lockout on PVDD
UVLO1hys UVLO hysteresis on PVDD
UVLO2
Undervoltage lockout on HSVDD
UVLO2hys UVLO hysteresis on HSVDD
VOLUME CONTROL
2.2 V
150 mV
1.4 V
100 mV
Digital volume range Loudspeaker
Minimum gain
Maximum gain
−60 dB
12
Digital volume range Headset
Minimum gain
Maximum gain
−60 dB
12
Preamp gain
Input 1 or 2
INxG = 00
INxG = 01
INxG = 10
INxG = 11
dB
0
+6
+12
+20
Maximum gain setting Headset
INxG = 11 and gain control =
110100
+32 dB
Maximum gain setting Speaker
INxG = 11 and gain control = 100111
(speaker amplifier has a gain of
+12 dB)
+44
dB
8. Guaranteed by design and characterized.
http://onsemi.com
5
5 Page 
NCP2704
TYPICAL OPERATING CHARACTERISTICS
Headphone
Figure 13. PSRR vs Frequency
Figure 14. Crosstalk vs Frequency
Figure 15. SNR vs Frequency at Pout = 20 mW
Figure 16. Power Dissipation vs Pout with 16 W
Load
Figure 17. Power Dissipation vs Pout with 32 W Load
http://onsemi.com
11
11 Page | ||
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| PDF Descargar | [ Datasheet NCP2704.PDF ] | |
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