CS35L00/01/03 产品公告
Low Power Audio Amplifier
CS35L00/01/03
3W Mono Class-D Audio Amplifier with Low Idle Current
MODE
LDO Filter
VBATT
2.5 V - 5.5 V
CS35L00
Low Drop-Out
Voltage Regulator
Class-H
Controller
Shutdown
Gain
Audio In +
CS35L00 10-pin DFN
(actual size: 3 mm x 3 mm)
Gain Select
Audio In –
Gate Drivers with
Edge Rate Control
Advanced ΔΣ
Modulator
with Dithered
Spectrum
Gain
Short Circuit/
Thermal
Protection
Internal
Oscillator
GND
CS35L01/03
OVERVIEW
CS35L01/03 9-ball WLCSP
(actual size: 1.2 mm x 1.2 mm)
Market Applications
Smartphones
UMPC/MID
Docking Stations
Active Speakers
Portable Gaming
Cirrus Logic, Inc.
2901 Via Fortuna
Austin, Texas 78746
The CS35L00, L01 and L03 are a family of low-power
audio amplifiers with Cirrus Logic’s proprietary Hybrid
Class-D Architecture, designed specifically for today’s
mobile applications. Combining the benefits of both linear
and switching amplifier technologies, its Hybrid Class-D
architecture offers best-in-class idle power consumption
and low radiated emission while maintaining high output
power efficiency and superior audio quality.
The CS35L0X family has the industry’s lowest quiescent
current at less than 1mA. When used with no external
filter components, it is at least 40 percent lower than the
closest competitor in the market today. Furthermore, the
Hybrid Class-D Architecture allows designers to optimize
their system performance with external components if
needed, such as with an external shunt cap without
sacrificing significant power consumption when idle.
Quiescent Current Comparison
12
10
Toll-Free +1-800-888-5016
Sales Support
North America +1 800-625-4084
Asia Pacific +852 2376-0801
Japan +81 (3) 5226-7757
Europe/UK +44 (90) 1628-891-300
learn more at
www.cirrus.com
Quiescent Current (mA)*
United States
T +1-512-851-4000
Speaker Out +
Speaker Out –
Gate Drivers with
Edge Rate Control
This flexible Hybrid Class-D output
stage offers four modes of operation:
Standard Class-D (SD) mode offers full audio
bandwidth and high audio performance
Hybrid Class-D (HD) mode offers a substantial
reduction in idle power consumption with an integrated
Class-H controller
Reduced Frequency Class-D (FSD) mode reduces
the output switching frequency, producing lower
electromagnetic interference (EMI)
Reduced Frequency Hybrid Class-D (FHD) mode
produces both the lower idle power consumption of
HD mode and the reduced EMI benefits of FSD mode
Requiring minimal external components and PCB space,
the CS35L00 is available in 3 mm x 3 mm, 10-pin DFN
package and the CS35L01/03 are available in a 1.2 mm x
1.2 mm, 9-ball WLCSP package with Commercial
temperature grade (-10°C to +70°C).
For the full datasheet, visit www.cirrus.com/support.
8
6
4
2
0
0nF
1nF
Output Shunt Capacitor Value
2nF
Competitor Solutions
Low Power Audio Amplifier | C S 3 5 L 0 0 / 01/ 0 3
CS35L00/01/03 Features
DEMONSTRATION BOARD CDB35L00
REFERENCE BOARD CRD35L01
Hybrid Class-D Architecture
• 1 x 3.0 W into 4 Ω (10% THD+N)
• 1 x 2.3 W into 4 Ω (1% THD+N)
• 1 x 1.7 W into 8 Ω (10% THD+N)
• 1 x 1.4 W into 8 Ω (1% THD+N)
Ultra-low Power Consumption
• <1 mA Quiescent Current
Advanced ∆ ∑ Closed-loop Modulation
• 98 dB Signal-to-Noise Ratio (A-Weighted)
• 0.02% THD+N @ 1 W (SD & HD Mode)
• -85 dB Power Supply Rejection Ratio @ 217Hz
• -70 dB Common Mode Rejection Ratio
• Integrated Protection and Automatic Recovery for
Output Short-circuit and Thermal Overload
• Pop and Click Suppression
(Chip shown at
actual size)
Available in Low-profile 10-pin DFN or 9-ball WLCSP
• CS35L00: +6 dB or +12 dB Selectable Gain
• CS35L01: +6 dB default Gain
• CS35L03: +12 dB default Gain
Package
Comments
Gain
Power
Supply (V)
Channels
PSRR (dB)
THD+N %
Dynamic
Range (dB)
Power (W)
Part
product selector
CS35L00
3.0
98
0.02
-85
1
2.5 to 5.5
Selectable +6/+12 dB
Hybrid Class-D architecture,
< 1mA quiescent current
10 DFN
CS35L01
3.0
98
0.02
-85
1
2.5 to 5.5
+6 dB
Hybrid Class-D architecture,
< 1mA quiescent current
9 WLCSP
CS35L03
3.0
98
0.02
-85
1
2.5 to 5.5
+12 dB
Hybrid Class-D architecture,
< 1mA quiescent current
9 WLCSP
© 2010 Cirrus Logic, Inc. All rights reserved. Product information is subject to change without notice. Cirrus Logic, Cirrus and the Cirrus Logic logo design
are trademarks of Cirrus Logic, Inc. Other brand and product names may be trademarks or service marks of their respective owners.
Product Bulletin 823111-0610-PB
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