CS44L10 Datasheet, PDF (1/34 Pages) Cirrus Logic – Digital PWH Headphone Monitor

CS44L10
Digital PWM Headphone Monitor
Features
l Up to 100 dB Dynamic Range
l 2.4 V to 5.0 V supply
l Sample rates up to 96 kHz
l Digital Tone Control
—3 selectable HPF and LPF corner frequencies
—12 dB boost for bass and treble - 1 dB step size
l Programmable Digital volume control
—+18 to -96 dB in 1 dB steps
l Peak signal soft limiting
l De-emphasis for 32 kHz, 44.1 kHz, and 48
kHz
l Selectable outputs for each channel including
—Channel A: R, L, mono (L + R) / 2, mute
—Channel B: R, L, mono (L + R) / 2, mute
l PWM PopGuard^®
l 100 mW/Channel into 16 Ω @ 3.6 V
Description
The CS44L10 is a complete stereo digital-to-PWM Class D au-
dio amplifier system controller including interpolation, volume
control, and a headphone amplifier in a 16-pin TSSOP
package.
The CS44L10 architecture uses a direct-to-digital approach
that maintains digital signal integrity to the final output filter.
This minimizes analog interference effects that can negatively
affect system performance.
The CS44L10 contains on-chip digital bass and treble boost,
peak signal limiting, and de-emphasis. The PWM amplifier can
achieve greater than 90% efficiency. This efficiency leads to
longer battery life for portable systems, smaller device pack-
age, less heat sink requirements, and smaller power supplies.
The CS44L10 is ideal for portable audio, headphone amplifi-
ers, and mobile phones.
ORDERING INFORMATION
CS44L10-KZ -10 to 70 °C 16-pin TSSOP
VL
SDIN
SCLK
LRCK
SCL/DIF0
SDA/DEM
Control Port
Multibit ∆Σ
Modulator with
Correction
PWM
Conversion
Serial
Audio
Port
Digital Volume
Control,
Bass/Treble
Boost,
Compression
Limiting,
De-emphasis
Interpolation
Input Sampling Rate
LRCLK/MCLK Ratio
Multibit ∆Σ
Modulator with
Correction
PWM
Conversion
Level
Shifter
Level
Shifter
VA_HPA
HP_A
GND_HPA
VA_HPB
HP_B
GND_HPB
RST
Advance Product Information
P.O. Box 17847, Austin, Texas 78760
[phone] FAX: [phone]
http://www.cirrus.com
MCLK
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright  Cirrus Logic, Inc. 2001
(All Rights Reserved)
MAY ‘01
DS541PP1
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