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LM49370RLX-NOPB Arkusz danych(PDF) 10 Page - Texas Instruments

Numer części LM49370RLX-NOPB
Szczegółowy opis  Boomer짰 Audio Power Amplifier Series Audio Sub-System with an Ultra Low EMI, Spread Spectrum, Class D Loudspeaker Amplifier, a Dual-Mode Stereo Headphone Amplifier, and a Dedicated PCM Interface for Bluetooth Transceivers
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI1 - Texas Instruments

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LM49370
SNAS356D – FEBRUARY 2007 – REVISED MARCH 2012
www.ti.com
Electrical Characteristics
(1)(2) (continued)
Unless otherwise stated PLL_VDD = 3.3V, D_VDD = 3.3V, BB_VDD = 1.8V, A_VDD = 3.3V, LS_VDD = 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)
TSPIHOLDD
Data Hold Time
100
ns (min)
TSPICL
Clock Low Time
500
ns (min)
TSPICH
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
VCRAUX
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
VCRDAC
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
VCRCPIN
CPIN Volume Control Range
Maximum Gain
12
dB
Minimum Gain
6
dB
VCRMIC
MIC Volume Control Range
Maximum Gain
36
dB
Minimum Gain
–30
dB
VCRSIDE
SIDETONE Volume Control Range
Maximum Gain
0
dB
SSAUX
AUX VCR Stepsize
1.5
dB
SSDAC
DAC VCR Stepsize
1.5
dB
SSCPIN
CPIN VCR Stepsize
1.5
dB
SSMIC
MIC VCR Stepsize
2
dB
SSSIDE
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/ VCRMIC gain = 6dB
Maximum Gain from MIC input using
0
dB
SIDETONE path w/ VCRMIC gain = 6dB
10
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