Datasheet

LM49370
SNAS356D –FEBRUARY 2007–REVISED MARCH 2012 www.ti.com
Electrical Characteristics
(1)(2)
(continued)
Unless otherwise stated PLL_V
DD
= 3.3V, D_V
DD
= 3.3V, BB_V
DD
= 1.8V, A_V
DD
= 3.3V, LS_V
DD
= 3.3V. The following
specifications apply for the circuit shown in Figure 2 unless otherwise stated. Limits apply for 25°C.
LM49370
Symbol Parameter Conditions Units
Limit
(4)
Typical
(3)
(5)
T
SPIHOLDD
Data Hold Time 100 ns (min)
T
SPICL
Clock Low Time 500 ns (min)
T
SPICH
Clock High Time 500 ns (min)
VOLUME CONTROL
Minimum Gain w/ AUX_BOOST OFF –46.5 dB
Maximum Gain w/ AUX_BOOST OFF 0 dB
VCR
AUX
AUX Volume Control Range
Minimum Gain w/ AUX_BOOST ON –34.5 dB
Maximum Gain w/ AUX_BOOST ON 12 dB
Minimum Gain w/ DAC_BOOST OFF –46.5 dB
Maximum Gain w/ DAC_BOOST OFF 0 dB
VCR
DAC
DAC Volume Control Range
Minimum Gain w/ DAC_BOOST ON –34.5 dB
Maximum Gain w/ DAC_BOOST ON 12 dB
Minimum Gain –34.5 dB
VCR
CPIN
CPIN Volume Control Range
Maximum Gain 12 dB
Minimum Gain 6 dB
VCR
MIC
MIC Volume Control Range
Maximum Gain 36 dB
Minimum Gain –30 dB
VCR
SIDE
SIDETONE Volume Control Range
Maximum Gain 0 dB
SS
AUX
AUX VCR Stepsize 1.5 dB
SS
DAC
DAC VCR Stepsize 1.5 dB
SS
CPIN
CPIN VCR Stepsize 1.5 dB
SS
MIC
MIC VCR Stepsize 2 dB
SS
SIDE
SIDETONE VCR Stepsize 3 dB
AUDIO PATH GAIN W/ STEREO (bit 6 of 0x00h) ENABLED (AUX_L & AUX_R signals identical and selected onto mixer)
Minimum Gain from AUX input, –34.5 dB
BOOST OFF
Maximum Gain from AUX input, 12 dB
Loudspeaker Audio Path Gain
BOOST OFF
Minimum Gain from CPI input –22.5 dB
Maximum Gain from CPI input 24 dB
Minimum Gain from AUX input, –52.5 dB
BOOST OFF
Maximum Gain from AUX input, –6 dB
BOOST OFF
Minimum Gain from CPI input –40.5 dB
Headphone Audio Path Gain
Maximum Gain from CPI input 6 dB
Minimum Gain from MIC input using
–30 dB
SIDETONE path w/ VCR
MIC
gain = 6dB
Maximum Gain from MIC input using
0 dB
SIDETONE path w/ VCR
MIC
gain = 6dB
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