Electrical characteristics - fhd mode, Cs35l00 – Cirrus Logic CS35L00 User Manual
Page 13
CS35L00
DS906PP1
13
ELECTRICAL CHARACTERISTICS - FHD MODE
Note:
13. 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.
14. Idle Current Draw (I
IDLE
) is specified without any output filtering. Refer to
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
- All Operational Modes” on page 9
Parameters
Symbol Test
Conditions
Min
Typ
Max Units
Output Power
(Continuous Average)
P
O
THD+N = 1%
R
L
= 8
Ω (VBATT = 5.0/4.2/3.7 VDC)
R
L
= 4
Ω (VBATT = 5.0/4.2/3.7 VDC)
-
-
1.28/0.89/0.68
2.17/1.51/1.15
-
-
W
W
THD+N = 10%
R
L
= 8
Ω (VBATT = 5.0/4.2/3.7 VDC)
R
L
= 4
Ω (VBATT = 5.0/4.2/3.7 VDC)
-
-
1.65/1.16/0.90
2.76/1.95/1.51
-
-
W
W
Total Harmonic Distortion + Noise THD+N P
O
= 1.0 W
-
0.10
-
%
Power Supply Rejection Ratio
PSRR
V
ripple
= 200 mV
PP
, AINx AC coupled to GND
@ 217 Hz
@ 1 kHz
-
-
89
85
-
-
dB
dB
Common-Mode Rejection Ratio
CMRR V
ripple
= 1 V
PP
, f
ripple
= 217 Hz
-
71
-
dB
Signal to Noise Ratio
A-Weighted
SNR
A
Inputs AC Coupled to Ground,
Referenced to 1% THD+N
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
-
93
94
-
-
dB
dB
Idle Channel Noise
A-Weighted
ICN
A
AIN+ connected to AIN-
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
-
71
63
-
-
μVrms
μVrms
Idle Channel Noise
ICN
AIN+ connected to AIN-
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
-
125
115
-
-
μVrms
μVrms
Frequency Response
FR
20 Hz to 20 kHz
-4.0
0
0.5
dB
Total Group Delay
GD
-
14
-
μs
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
Idle Current Draw
I
IDLE
AIN+ connected AIN-, No Output Load
VBATT = 5 VDC
VBATT = 4.2 VDC
VBATT = 3.7 VDC
-
-
-
1.11
1.06
1.03
-
-
-
mA
mA
mA
Input Impedance, Single Ended
Z
IN
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
-
160
250
-
-
k
Ω
k
Ω
Input Voltage @ 1 % THD+N
V
ICLIP
R
L
= 8
Ω (VBATT = 5.0/4.2/3.7 VDC)
GAIN_SEL = Low (12 dB)
GAIN_SEL = High (6 dB)
-
-
0.83/0.69/0.61
1.65/1.38/1.20
-
-
Vrms
Vrms