NE58633BS,157 NXP Semiconductors, NE58633BS,157 Datasheet - Page 20

• Manufacturer Part Number: NE58633BS,157
• Description: IC AMP AUDIO .04W STER D 32HVQFN
• Manufacturer: NXP Semiconductors
• Type: Class Dr

Specifications of NE58633BS,157

• Output Type: Headphones, 2-Channel (Stereo)
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Max Output Power X Channels @ Load: 40mW x 2 @ 16 Ohm
• Voltage - Supply: 0.9 V ~ 1.7 V
• Features: Depop, Differential Inputs, Microphone, Mute, Short-Circuit Protection
• Mounting Type: Surface Mount
• Product: Class-D
• Output Power: 40 mW
• Available Set Gain: 100 dB
• Thd Plus Noise: 1 %
• Supply Current: 5 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 32 Ohms
• Input Offset Voltage: 1 mV
• Input Signal Type: Single
• Minimum Operating Temperature: 0 C
• Output Signal Type: Differential, Single
• Supply Type: Single
• Supply Voltage (max): 1.7 V
• Supply Voltage (min): 0.9 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935283227157; NE58633BS; NE58633BS

NXP Semiconductors
11. Test information
NE58633_3
Product data sheet
10.8.3.2 Feedback demo board schematic
Since the attenuation performance of an analog ANR headphone is defined in the design
stage, it has limited applicability to work in different environments. Overall noise cancelling
performance is achieved by first characterizing the passive attenuation of headphone
plant and then designing the ANR circuitry to obtain the optimal overall noise reduction
performance and stability.
over-the-ear feedback headphone. The combined noise reduction is the sum of the PNR
of the plant and the active noise reduction of the feedback filter circuit.
The evaluation demo board embodies a typical filter design and may not yield the optimal
noise cancelling performance for a given headphone mechanical-acoustical plant.
Fig 19. NE58633 test circuit
ANALYZER
AUDIO
AP585
Rev. 03 — 19 January 2010
Figure 16
INxP
INxN
Noise reduction class-D headphone driver amplifier
SUPPLY
POWER
+
shows combined noise reduction results of typical
DUT
OUTxP
OUTxN
15 H
15 H
R L
LOW-PASS FILTER
MEASUREMENT
AUX0025
INPUTS
30 kHz
AP585
002aad417
NE58633
© NXP B.V. 2010. All rights reserved.
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