CS35L32 Datasheet, PDF (8/51 Pages) Cirrus Logic – Boosted Class D Amplifier with Speaker-Protection Monitoring and Flash LED Drivers

CS35L32
3 Characteristics and Specifications
3 Characteristics and Specifications
Table 3-1. Recommended Operating Conditions
GNDA = GNDP = 0 V, all voltages with respect to ground. Device functional operation is guaranteed within these limits. Functionality is not guaranteed
or implied outside of these limits. Operation outside of these limits may adversely affect device reliability.
Parameters
Symbol Minimum
Maximum
Units
DC power supply
Analog (and digital I/O and core) VA
1.71
1.89
V
Battery VP
3.0
5.25
V
External voltage applied to analog inputs powered by VA (IREF+, FILT+) ¹
External voltage applied to analog inputs powered by SPKRSUPPLY (IN+, IN–,
ISENSE+, ISENSE–,VSENSE+, VSENSE–)
V_INAS
V_INSS
–0.3
VA + 0.3
V
–0.3
SPKRSUPPLY + 0.3 V
External voltage applied to digital inputs
Ambient temperature
V_INDI
TA
–0.3
–10
VA + 0.3
V
+70
°C
1.The maximum overvoltage/undervoltage is limited by the input current.
Table 3-2. Absolute Maximum Ratings
GNDA = GNDP = 0 V; all voltages with respect to ground. Operation at or beyond these limits may permanently damage the device.
Parameters
Symbol
Minimum Maximum
DC power supply
Analog
VA
–0.3
2.22
Battery
VP
–0.3
6.0
Input current ¹
Ambient operating temperature (local to device, power applied)
Junction operating temperature (power applied)
Storage temperature
I_IN
—
±10
T_A
–40
+115
T_J
–40
+150
T_STG
–65
+150
Units
V
V
mA
°C
°C
°C
1.Any pin except supplies. Transient currents of up to ±100 mA on the analog input pins do not cause SCR latch up.
Table 3-3. DC Characteristics
Test conditions, except where noted otherwise: VA = 1.8 V, VP = 3.6 V, VBST = 5.0 V, GNDA = GNDP = 0 V, TA = +25°C.
Parameters
Symbol
Test Conditions
Min
Differential Input resistance (IN+ to IN–)
R_INDIF
Amp gain = 9 dB —
Amp gain = 12 dB —
Amp gain = 15 dB —
Amp gain = 18 dB —
FILT+ voltage
—
——
Overtemperature shutdown threshold
Overtemperature warning threshold
Overtemperature warning threshold deviation
T_OP
T_WRN
—
——
——
——
Low battery threshold
—
LOWBAT_TH = 00 —
LOWBAT_TH = 01 —
LOWBAT_TH = 10 —
LOWBAT_TH = 11 —
Low-battery recovery threshold
—
LOWBAT_RECOV = 001 —
LOWBAT_RECOV = 010 —
LOWBAT_RECOV = 011 —
LOWBAT_RECOV = 100 —
LOWBAT_RECOV = 101–11x —
VP undervoltage lockout threshold (VP falling)
UVLO
——
VP undervoltage lockout hysteresis
—
——
Typical
63
51
40
31
VA
150
135
±10
3.10
3.20
3.30
3.40
3.20
3.30
3.40
3.50
3.60
2
100
Max
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Units
k
k
k
k
—
°C
°C
°C
V
V
V
V
V
V
V
V
V
V
mV
8
DS963F5