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NCS2632 NOCAP], Pop-Free, 3 VRMS Audio Line Driver with Adjustable Gain
The NCS2632 is a pop −free stereo line driver . It uses ON Semiconductor’s patented NOCAP technology which allows the elimination of the external DC −blocking capacitors by providing ground−referenced outputs through the generation of an internal negative supply rail. The device can drive 3 VRMS into a 600 W load at 5 V power supply . By eliminating the two external heavy coupling capacitors, the NOCAP approach of fers significant space and cost savings compared to similar audio solutions. The NCS2632 has dif ferential inputs and is available with an external adjustable gain ranging from ±1 V/V to ±10 V/V. The gain is adjusted with external resistors. The device can also be configured as a 2nd order low pass filter to complement DAC’s and SOC converters. In addition to the NOCAP architecture, it contains specific circuitry to prevent “Pop & Click” noise from occurring during Enable / Shutdown transitions. The Signal-to-Noise Ratio reaches 105 dB, offering high fidelity audio sound. The NCS2632 exhibits a high power supply rejection with a typical value of 90 dB. This device also features an Under−Voltage Protection (UVP) function which can be adjusted using an external resistor bridge. The device is available in a TSSOP−14 package.
Features
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http://onsemi.com MARKING DIAGRAM
14 1 TSSOP−14 CASE 948G A L Y W G 1 14 NCS 2632 ALYWG G
= Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package
(*Note: Microdot may be in either location) *For additional marking information, refer to Application Note AND8473/D.
• NOCAP
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 13 of this data sheet.
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Eliminates Pop/Clicks Eliminates Output DC−Blocking Capacitors – Provides Flat Frequency Response 20 Hz – 20 kHz Supply Voltage from 2.2 V to 5.5 V Low Noise and THD ♦ SNR = 105 dB ♦ Typical Vn at 8 mVrms, A−Weighted ♦ THD+N < 0.001% at 1 kHz Output Voltage into 600 W Load ♦ 2 VRMS with 3.3 V Supply Voltage ♦ 3 VRMS with 5 V Supply Voltage Adjustable Gain from ± 1 V/V to ± 10 V/V Differential Input High PSRR: 90 dB External Under−Voltage Detection Function Enhanced Pop & Click Suppression Function Offset Voltage ≤ ±400 mV
• Outputs pass ±8 kV contact discharge according to • Available in a TSSOP−14 package • These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
Applications
IEC61000−4−2 under application conditions
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Set−Top Boxes PDP / LCD TV Blu−ray™ Player, DVD Players Home Theater in a Box Laptops, Notebook PCs
© Semiconductor Components Industries, LLC, 2013
October, 2013 − Rev. 4
1
Publication Order Number: NCS2632/D
http://www.Datasheet4U.com
NCS2632
VDD INLP INLM
OUTL
EN
CP CN
Charge Pump Circuitry
Bias Circuitry AGND
Click/Pop Suppression Circuitry AGND
UVP
PGND
AGND OUTR
VSS
INRP
INRM
Figure 1. NCS2632, Simplified Block Diagram
1 2 3 4 5 6 7.