TAS2560 Datasheet, PDF (7/80 Pages) Texas Instruments – 5.6-W Class-D Mono Audio Amplifier with IV Sense

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TAS2560
SLASE86B – JUNE 2016 – REVISED AUGUST 2016
Electrical Characteristics (continued)
V_BAT = 3.6 V, VDD = IOVDD = 1.8 V, RESETZ = IOVDD, Gain = 16.4 dB, ERC = 14 ns, Boost Inductor = 2.2 µH, R_L = 8 Ω +
33 µH, 1-kHz input frequency, 48-kHz sample rate for digital input, Class-H Boost Enabled, T_A= 25°C, ILIM = 3 A (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
CURRENT SENSE
Peak current which will give full scale
digital output 8-Ω load
1.25
Current sense full scale
Peak current which will give full scale
digital output 8-Ω load PDM
Peak current which will give full scale
digital output 6-Ω load
4.022
1.5
A_PEAK
Peak current which will give full scale
digital output 4-Ω load
1.75
Current sense accuracy
Current sense gain drift over
temperature
I_OUT = 354 mA_RMS (1 W)
–40°C to 85°C
1.7%
4%
Current sense gain linearity
From 15 mW to 3.5 W for fin=1 kHz
1.5%
THD+N Distortion + Noise
SNR
P_OUT = 3 W (Load = 8 Ω + 33 µH)
P_OUT = 3 W (Load = 4 Ω + 33 µH)
20 Hz to 20 kHz, A-wt
0.196%
0.132%
–68
db
VOLTAGE SENSE
Voltage sense full scale
Peak voltage which will give full scale
digital output⁽¹⁾
Peak voltage which will give full scale
digital output in PDM
9.353
16.65
V_PEAK
Voltage sense accuracy
Voltage sense gain drift over
temperature
V_OUT = 2.83 Vrms (1 W)
–40°C to 85°C
1%
1.2%
Voltage sense gain linearity
From 15 mW to 3.5 W for fin = 1 kHz
1%
INTERFACE
Voltage and current sense data rate
Voltage and current sense ADC OSR
TDM/I²S
TDM/I²S
48
kHz
64
OSR
F_MCLK MCLK frequency
POWER CONSUMPTION
0.512
49.15 MHz
Power consumption with digital input
and IV-sense disabled. Idle channel
condition
From VBAT, no signal
From VDD, no signal
3.2
mA
9.5
mA
Power consumption with digital input ^{From VBAT, no signal}
and IV-sense enabled.
From VDD, no signal
3.2
mA
10.6
mA
Power consumption in hardware
shutdown
From VBAT, RESETZ = 0
From VDD, RESETZ = 0
0.1
µA
1.2
µA
Power consumption in software
shutdown. See Low Power Sleep
From VBAT
From VDD
0.1
µA
9.8
µA
DIGITAL INPUT / OUTPUT
V_IH
High-level digital input voltage
V_IL
Low-level digital input voltage
All digital pins except SDA and SCL,
IOVDD = 1.8-V operation
0.65 ×
IOVDD
V
0.35 ×
IOVDD
V
V_IH
High-level digital input voltage
V_IL
Low-level digital input voltage
All digital pins except SDA and SCL,
IOVDD = 3.3-V operation
2
V
0.45
V
(1) Voltage Sense Fullscale = 1.176 Vrms × 10^{(DAC_GAIN/20)}
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