CS3511 Datasheet, PDF (7/26 Pages) Cirrus Logic – Stereo 10 W High-efficiency Class-D Audio Power Amplifier

CS3511
AC ELECTRICAL CHARACTERISTICS
Test Conditions (unless otherwise specified): AGND = DGND = PGND = 0 V; All voltages with respect to ground;
T_A = 25°C; VP = 12 V; R_L = 8 Ω full-bridge; GAIN1 = 0, GAIN0 = 1; 10 Hz to 20 kHz Measurement Bandwidth; Per-
formance measurements taken with a differential 997 Hz sine wave and AES17 measurement filter; Stereo Full-
Bridge measurements taken through the Full-Bridge Output Filter shown in Figure 4 on page 15.
Parameters
Symbol
Test Conditions
Min
Output Power (Continuous Average/Channel)
(Note 5)
THD+N = 1%
R_L = 8 Ω -
R_L = 6 Ω ^-
THD+N = 7%
P_O
R_L = 8 Ω -
R_L = 6 Ω ^-
THD+N = 10%
R_L = 8 Ω -
R_L = 6 Ω ^-
Total Harmonic Distortion + Noise
(Note 5)
THD+N
P_O = 1 W, R_L = 8 Ω
P_O = 5 W, R_L = 8 Ω
-
-
Dynamic Range
(Note 6)
DYR
V_in = -60 dBi
A-Weighted -
Unweighted -
Signal to Noise Ratio
(Note 6)
SNR
Inputs AC coupled to AGND
A-Weighted -
Unweighted -
Power Supply Rejection Ratio
200 mv p-p from
PSRR 20 Hz ≤ f ≤ 1 kHz, inputs AC
-
coupled to AGND
Typ
7.5
9.1
8.8
10.8
9.4
11.4
0.019
0.025
99
96
99
96
55
Max
-
-
-
-
-
-
-
-
Units
W
W
W
W
W
W
%
%
-
dB
-
dB
-
dB
-
dB
-
dB
IHF Intermodulation Distortion
Channel Separation
Output Offset Voltage
(Note 7)
Efficiency
PWM Output Over-Current Error Trigger Point
Junction Thermal Error Rising Trigger Point
Junction Thermal Error Falling Trigger Point
Turn On Time
Turn Off Time
Amplifier Gain
Gain Matching
Input Impedance
IHF-IMD
CS
V_OFFSET
η
I_CE
T_TERISE
T_TEFALL
t_on
t_off
19 kHz, 20 kHz, 1:1 (IHF),
P_O = 1 W
P_O=1 W, f = 1 kHz
20 Hz ≤ f ≤ 20 kHz
MUTE = low
P_O = 2 x 9.4 W, R_L = 8 Ω
SLEEP = V_IL
SLEEP = V_IH
Gain1 = 0, Gain0 = 0
Gain1 = 0, Gain0 = 1
Gain1 = 1, Gain0 = 0
Gain1 = 1, Gain0 = 1
Between output channels
Gain1 = 0, Gain0 = 0
Gain1 = 0, Gain0 = 1
Gain1 = 1, Gain0 = 0
Gain1 = 1, Gain0 = 1
-
0.20
-
%
-
104
-
dB
-
78
-
dB
-
50
-
mV
-
85
-
%
-
2.7
-
A
-
155
-
°C
-
135
-
°C
-
155
-
ms
-
3
-
ms
-
13.6
-
dB
-
19.5
-
dB
-
23.8
-
dB
-
27.3
-
dB
-
0.1
-
%
36.8 46.0 55.2 kΩ
18.4 23.0 27.6 kΩ
11.0 13.8 16.6 kΩ
7.3
9.2
11.1 kΩ
Notes:
5. See Figure 5 on page 17.
6. dBi is referenced to the input signal amplitude resulting in the specified output power at THD+N<1%. See
“Parameter Definitions” on page 21 for more information.
7. See Section 4.2 “Dynamic DC Offset Calibration” on page 12.
DS845PP2
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