Cirrus Logic CS42L42 Manual page 18

Table 3-14. HSBIAS Characteristics
Test conditions (unless specified otherwise):
with respect to ground; parameters can vary with VA and VP; typical performance data taken with VL = VA = 1.8 V, VP = 3.6 V; min/max performance
data taken with VA = 1.66–1.94 V, VL = 1.8 V, VP = 3.0–5.25;
2
Output voltage
DC output current, I 4
OUT2
Integrated output noise (measured at HSx)
Output resistance, R
OUTx
Output resistance temperature variation
Current-sense trip point
Capacitive load
1.If HSBIAS_CTRL = 01, the internal HSBIAS node is to be shorted to ground. Output is pulled down to ground via an internal resistance of
HS3/HS4 pins, which is, in turn, connected internally or externally to ground (per
2.The output voltage is the unloaded, open-circuit voltage present at the HSx pin selected as HSBIAS output.
3.No audio is allowed on HSIN/HSx if DETECT_MODE = 11 and HSBIAS_CTRL = 10.
4.Specifies use limits for the normal operation and HSIN short conditions.
DS1083F2
Fig. 2-1 and Fig. 2-2 show CS42L42 connections; GNDHS = GNDA = GNDL = GNDCP = 0 V; voltages are
I
= 500 µA; T
OUT
Parameters 1
PDN_ALL DETECT_MODE
0/1 0x (inactive/short detect only)
0/1 01 (short detect only)
0 11 (Normal Mode)
0 00/11 (inactive/Normal Mode)
HSBIAS_CTRL = 10 (2.0-V Mode)
HSBIAS_CTRL = 11 (2.7-V Mode)
3 Characteristics and Specifications
= +25°C; PDN_ALL = 0, HSBIAS_CTRL = 2.7-V Mode.
A
HSBIAS_CTRL
10 (2.0-V Mode)
11 (2.7-V Mode)
10 (2.0-V Mode) [3]
11 (2.7-V Mode)
f = 100 Hz–20 kHz
–40°C to +85°C
HSBIAS_SENSE_TRIP = 000
HSBIAS_SENSE_TRIP = 001
HSBIAS_SENSE_TRIP = 010
HSBIAS_SENSE_TRIP = 011
HSBIAS_SENSE_TRIP = 100
HSBIAS_SENSE_TRIP = 101
HSBIAS_SENSE_TRIP = 110
HSBIAS_SENSE_TRIP = 111
Fig. 2-1).
CS42L42
Minimum Typical Maximum
1.40 1.86 2.15
1.75 2.30 2.70
1.80 2.00 2.10
2.61 2.75 2.86
— 0.91 —
— 1.2 —
— — 4
2.19 2.21 2.23
±3
— 12 —
— 23 —
— 41 —
— 52 —
— 64 —
— 75 —
— 93 —
— 104 —
— — 100
Unit
V
V
V
V
mA
mA
µVrms
k

µA
µA
µA
µA
µA
µA
µA
µA
µF
R to the
OUT
18