NE58633BS,157 NXP Semiconductors, NE58633BS,157 Datasheet - Page 12

• 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
10. Application information
NE58633_3
Product data sheet
10.1 General application description
The NE58633 is a stereo noise reduction IC with a boost converter output at 3.2 V with
2.5 mA load current. Using the on-chip boost converter, it operates from a single cell
alkaline battery (0.9 V to 1.7 V). The NE58633 is optimized for low current consumption at
6 mA quiescent current for V
Each channel is comprised of a low noise preamplifier which is driven by an electret
microphone, a music amplifier and class-D, BTL headphone driver amplifier (see
“Block
The NE58633 output drivers are capable of driving 800 mV
loads. THD+N performance is 1 % at V
voltage driving 16 Ω at a battery voltage of 1.5 V.
The internal reference voltage is set for
decoupled to enhance noise performance. The NE58633 differential architecture provides
immunity to noise. The output noise is typically 26 μV
The NE58633 provides ESD and short-circuit protection. It features mute control and
plop and click reduction circuitry.
As shown in the application circuit schematics
may be used for Active Noise Reduction (ANR) in either feedforward or feedback
noise-cancelling headphones and earphones in consumer and industrial applications. The
gain and filter characteristics of the ANR circuit are set using external resistors and
capacitors.
diagram”).
Rev. 03 — 19 January 2010
BAT
= 1.5 V.
Noise reduction class-D headphone driver amplifier
O
1
⁄
= 1 V
2
V
bst
M
(Figure 13
and is pinned out so it can be externally
and 10 % THD+N at 800 mV
rms
for G
and
rms
v(cl)
Figure
across 16 Ω and 32 Ω
= 25 dB.
14), the NE58633
NE58633
© NXP B.V. 2010. All rights reserved.
rms
Figure 1
output
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