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PDF CS35L03 Data sheet ( Hoja de datos )
| Número de pieza | CS35L03 | |
| Descripción | 2.9 W Mono Class-D Audio Amplifier | |
| Fabricantes | Cirrus Logic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CS35L03 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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CS35L01/03
3.0 W Mono Class-D Audio Amplifier with Low Idle Current
CS35L01 and CS35L03 Features
Filterless Hybrid Class-D Architecture
– <1 mA Quiescent Current
– 1 x 3.0 W into 4 (10% THD+N)
– 1 x 2.4 W into 4 (1% THD+N)
– 1 x 1.7 W into 8 (10% THD+N)
– 1 x 1.4 W into 8 (1% THD+N)
Advanced Closed-loop Modulation
– 98 dB Signal-to-Noise Ratio (A-Weighted)
– 0.02% THD+N @ 1 W (SD & HD Mode)
Integrated Protection and Automatic Recovery
for Output Short-circuit and Thermal Overload
Pin-compatible 9-ball WLCSP family for easy
upgrade path
– CS35L01: +6 dB default Gain
– CS35L03: +12 dB default Gain
Pop and Click Suppression
Common Applications
Mobile Phones
Laptops/Netbooks/Tablets
Portable Navigation Devices
Active Speakers
Portable Gaming
General Description
The CS35L01 and the CS35L03 are 3.0W high efficien-
cy Hybrid Class-D audio amplifiers with low idle current
consumption.
The CS35L01/03 features an advanced closed-loop ar-
chitecture to provide 0.02% THD+N at 1 W and -87 dB
PSRR at 217 Hz.
A flexible Hybrid Class-D output stage offers four
modes of operation: Standard Class-D (SD) mode of-
fers full audio bandwidth and high audio performance;
Hybrid Class-D (HD) mode offers a substantial reduc-
tion in idle power consumption with an integrated Class-
H controller; Reduced Frequency Class-D (FSD) mode
reduces the output switching frequency, producing low-
er electromagnetic interference (EMI); and 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 CS35L01 and CS35L03 are available in a
1.2 mm x 1.2 mm, 9-ball WLCSP package in Commer-
cial grade (-10°C to +70°C). Please see “Ordering
Information” on page 33 for package options and gain
configurations.
MODE
LDO Filter
VBATT
2.5V - 5V
Class-H
Controller
Low Drop-Out
Voltage Regulator
Shutdown
Audio In +
Gain
Audio In -
Gain
Advanced ΔΣ
Modulator
Gate Drivers
Gate Drivers
Speaker Out +
Speaker Out -
http://www.cirrus.com
Internal
Oscillator
Short Circuit/Thermal
Protection
Copyright Cirrus Logic, Inc. 2011
(All Rights Reserved)
GND
JULY '11
DS909F1
1 page  
1. BALL DESCRIPTIONS FOR CS35L01 & CS35L03
CS35L01/03
A1 A2 A3
IN+
MODE
OUT-
B1
LFILT +
B2
VBATT
B3
GND
C1 C2 C3
IN- SD OUT+
Figure 1. Top View of WLCSP Pinout
(Looking down through die)
Ball Name
IN+
MODE
OUT-
LFILT+
VBATT
GND
IN-
SD
OUT+
# Description
A1 Positive Analog Input (Input) - Differential positive audio signal input.
A2 Switching Mode (Input) - Controls the output switching modes of the CS35L01/03.
A3 Negative PWM Output (Output) - Differential negative PWM output.
B1
Low Drop Out Regulator Filter (Output) - Bypass capacitor connection point for internal LDO. Con-
necting this net to VBATT places the device into SD mode.
B2 Positive Analog Power Supply (Input) - Positive power supply input.
B3 Ground (Input) - Power supply ground.
C1 Negative Analog Input (Input) - Differential negative audio signal input.
C2 Shutdown (Input) - Pulling this net low places the CS35L01/03 in shutdown.
C3 Positive PWM Output (Output) - Differential Positive PWM output.
DS909F1
5
5 Page 
CS35L01/03
ELECTRICAL CHARACTERISTICS - FSD MODE
Parameters
Symbol
Test Conditions
Min Typ Max Units
Output Power
(Continuous Average)
THD+N = 1%
RL = 8 (VBATT = 5.0/4.2/3.7 VDC)
RL = 4 (VBATT = 5.0/4.2/3.7 VDC)
PO THD+N = 10%
RL = 8 (VBATT = 5.0/4.2/3.7 VDC)
RL = 4 (VBATT = 5.0/4.2/3.7 VDC)
- 1.32/0.94/0.72 -
- 2.30/1.62/1.24 -
- 1.70/1.21/0.94 -
- 2.94/2.08/1.61 -
W
W
W
W
Total Harmonic Distortion + Noise THD+N PO = 1.0 W
- 0.10 - %
Vripple = 200 mVPP, AINx AC coupled to GND
Power Supply Rejection Ratio
PSRR @ 217 Hz
- 88 - dB
@ 1 kHz
- 81 - dB
Common-Mode Rejection Ratio CMRR Vripple = 1 VPP, fripple = 217 Hz
- 71 - dB
Signal to Noise Ratio
A-Weighted
Inputs AC Coupled to Ground,
Referenced to 1% THD+N
SNRA CS35L03
(Note 13)
-
80
- dB
CS35L01
- 80 - dB
Idle Channel Noise
A-Weighted
ICNA
AIN+ connected to AIN-
CS35L03
CS35L01
- 300 - Vrms
- 290 - Vrms
Idle Channel Noise
AIN+ connected to AIN-
ICN CS35L03
CS35L01
- 570 - Vrms
- 550 - Vrms
Frequency Response
FR 20 Hz to 20 kHz
-4.0 0
0.5 dB
Total Group Delay
GD
- 14 - s
Output Switching Frequency
fsw2
- 76 - kHz
Idle Current Draw
(Note 12)
IIDLE
AIN+ connected AIN-, No Output Load
VBATT = 5.0 VDC
VBATT = 4.2 VDC
VBATT = 3.7 VDC
- 1.04 - mA
- 0.98 - mA
- 0.95 - mA
Input Impedance, Single Ended
ZIN
CS35L03
CS35L01
- 160 - k
- 240 - k
Input Voltage @ 1 % THD+N
VICLIP
RL = 8 (VBATT = 5.0/4.2/3.7 VDC)
CS35L03
CS35L01
- 0.83/0.70/0.61 - Vrms
- 1.66/1.39/1.22 - Vrms
Note:
12. Idle Current Draw (IIDLE) is specified without any output filtering. Refer to Section 5.3 on page 17 for
information on output filtering.
DS909F1
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CS35L03.PDF ] | |
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