Characteristic and specifications, Recommended operating conditions, Charac – Cirrus Logic CS42L73 User Manual
Page 19: A va
DS882F1
19
CS42L73
3. CHARACTERISTIC AND SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
Test Conditions: GND = AGND = PGND = CPGND = DGND = 0 V; all voltages are with respect to ground (GND).
Notes:
1.
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.
2.
“Parameter Definitions” on page 134
describes some parameters in detail.
3.
The recommended operation range of the VP supply depends on how the CS42L73 is configured. If either mic bias is
enabled (PDN_MIC1_BIAS = 0b or PDN_MIC2_BIAS = 0b) and the mic bias generators are set for their higher voltage
(MIC_BIAS_CTRL = 1b), either VP must be held above 3.2 V or VP_MIN must be set to 0b. With this configuration and
a VP level between 3.00 and 3.20 V, VP_MIN must be set to 0b to ensure the bias generators bypass one of their two
LDO stages, ensuring there is enough headroom to avoid dropout. Refer to
“Mic BIAS Characteristics” on page 26
for
details on how much setting VP_MIN to 0b reduces PSRR performance.
Symbol Min Nom Max Units
Equivalent Tolerance
from Nominal
DC Power Supplies
Analog
VA
1.66 1.80 1.94
V
±7.8%
Speakerphone Amplifiers, Mic Bias Generators
Mic Bias with High Voltage Selected and VP_MIN = 1b
Otherwise
VP
3.20
3.00
-
-
5.25
5.25
V
-
-
Charge Pump (Headphone and Lineout Amplifiers)
VCP
1.66 1.80 1.94
V
±7.8%
Digital Core,
Serial/Control/Digital-Mic Interfaces
VL
1.66 1.80 1.94
V
±7.8%
Temperature
Ambient Temperature (local to device)
Commercial: CWZR
T
A
-40
-
+85
C
-