Texas Instruments Boomer LM49360, User Manual

Page: 27 / 137

Symbol Parameter Conditions
LM49360
Units
(Limit)
Typical
( Note 6 )
Limit
( Note 7 )
SV
AUX
AUX Volume Setting Variation ±1 dB (max)
SV
MONO
MONO Volume Setting Variation ±1 dB (min)
SV
MIC
MIC Volume Setting Variation ±1 dB (max)
ANALOG INPUTS
AUX_R
IN
Auxiliary Input Impedance
AUX Gain = 18dB 10
k
Ω
AUX Gain = 0dB 38
k
Ω
AUX Gain = –46.5dB 64
k
Ω
MONO_R
IN
Mono Input Impedance
MONO Gain = 18dB 10
k
Ω
MONO Gain = 0dB 38
k
Ω
MONO Gain = –46.5dB 64 k
Ω
MIC_R
IN
Microphone Input Impedance All MIC gain settings 50
k
Ω
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability
and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in
the Recommended Operating Conditions is not implied. The Recommended Operating Conditions indicate conditions at which the device is functional and the
device should not be operated beyond such conditions. All voltages are measured with respect to the ground pin, unless otherwise specified. LSV
DD
must always
be the highest input power supply, LSV
DD
≥
PV
DD
, AV
DD
, IOV
DD
, Vin and must be supplied first during initial power-up.
Note 2: The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as otherwise modified
or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not guaranteed.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX
, θ
JA
, and the ambient temperature, T
A
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
- T
A
) / θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower.
Note 4: Human body model, applicable std. JESD22-A114C.
Note 5: Machine model, applicable std. JESD22-A115-A.
Note 6: Typical values represent most likely parametric norms at T
A
= +25ºC, and at the Recommended Operation Conditions at the time of product
characterization and are not guaranteed.
Note 7: Datasheet min/max specification limits are guaranteed by test or statistical analysis.
Note 8: The parameters in the electrical characteristic table are tested under open loop conditions at V
IN
= 3.6V unless otherwise specified. For performance
over the input voltage range and closed loop condition, refer to the datasheet curves.
Note 9: Dropout voltage is the voltage difference between the input and the output at which the output voltage drops to 100 mV below its nominal value.
Note 10: The minimum input voltage equals Vout (nom) + 0.5V or 3.0V, which ever is greater.
Note 11:
This specification is guaranteed by design.
Note 12: If CONFIG = L, the device can be placed in the standby state by de-asserting the PS_HOLD and PWR_ON pins as shown in Figure 14 . If CONFIG =
H or Z, the device can be placed in the standby state by de-asserting the EN pin as shown in Figure 13 . None of the software Override (SWOVR) bits can be set
or the device will not be in the standby state.
Note 13: V
OS
is reduced through auto-calibration. The procedure to start auto-calibration is to make sure the audio section is disabled by setting chip enable = 0
in audio register 0x00. Select the audio path. Enable audio with chip enable = 1. Wait 500 microseconds for the calibration to complete.
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LM49360