CS35L00 Datasheet, PDF (13/34 Pages) Cirrus Logic – 2.7 W Mono Class-D Audio Amplifier with Low Idle Current

CS35L00
ELECTRICAL CHARACTERISTICS - FHD MODE
Parameters
Symbol
Test Conditions
Min
Typ
Max Units
Output Power
(Continuous Average)
THD+N = 1%
R_L = 8  (VBATT = 5.0/4.2/3.7 VDC)
R_L = 4 (VBATT = 5.0/4.2/3.7 VDC)
P_{O THD+N = 10%}
R_L = 8  (VBATT = 5.0/4.2/3.7 VDC)
R_L = 4 (VBATT = 5.0/4.2/3.7 VDC)
- _{1.27/0.88/0.68} -
W
- _{2.09/1.45/1.10} -
W
- _{1.63/1.14/0.88} -
W
- _{2.69/1.87/1.43} -
W
Total Harmonic Distortion + Noise THD+N P_O = 1.0 W
-
Power Supply Rejection Ratio
V_ripple = 200 mV_PP, AINx AC coupled to GND
PSRR @ 217 Hz
-
@ 1 kHz
-
0.15
75
75
-
%
- dB
- dB
Common-Mode Rejection Ratio CMRR V_ripple = 1 V_PP, f_ripple = 217 Hz
-
55
- dB
Signal to Noise Ratio
A-Weighted
Inputs AC Coupled to Ground,
Referenced to 1% THD+N
SNR_{A GAIN_SEL = Low (12 dB)}
(Note 12)
-
92
- dB
GAIN_SEL = High (6 dB)
-
93
- dB
Idle Channel Noise
A-Weighted
ICN_A
AIN+ connected to AIN-
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
71
- Vrms
-
66
- Vrms
Idle Channel Noise
AIN+ connected to AIN-
ICN _{GAIN_SEL = Low (12 dB)}
GAIN_SEL = High (6 dB)
-
125
- Vrms
-
125
- Vrms
Frequency Response
FR 20 Hz to 20 kHz
-4.0
0
0.5 dB
Output Switching Frequency
f_sw1 Input level below V_IN-LDO
-
192
- kHz
Output Switching Frequency
f_sw2 Input level above V_IN-VBATT
-
76
- kHz
AIN+ connected AIN-, No Output Load
Idle Current Draw
(Note 13)
I_IDLE
VBATT = 5 VDC
VBATT = 4.2 VDC
VBATT = 3.7 VDC
-
0.94
- mA
-
0.94
- mA
-
0.94
- mA
Input Impedance, Single Ended
Z_IN GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
160
- k
-
240
- k
Input Voltage @ 1 % THD+N
V_ICLIP
R_L = 8  (VBATT = 5.0/4.2/3.7 VDC)
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
- 0.82/0.69/0.60 - Vrms
- 1.64/1.37/1.20 - Vrms
Note:
12. SNR_A dB is referenced to the output signal amplitude resulting in the specified output power at
THD+N <1%. See “Parameter Definitions” on page 29 for more information.
13. Idle Current Draw (I_IDLE) is specified without any output filtering. Refer to Section 5.3 on page 17 for
information on output filtering. At idle, the output devices will switch at the same rate in HD and FHD
mode. FHD only changes the output switching frequency when the input levels are above the “Input
Level for Entering VBATT Operation in HD/FHD Modes (V_IN-VBATT) given in “Electrical Characteristics
- All Operational Modes” on page 9.
DS906A2
13