lm4935rlx National Semiconductor Corporation, lm4935rlx Datasheet - Page 14

• Manufacturer Part Number: lm4935rlx
• Description: Audio Sub-system With Dual-mode Stereo Headphone And Mono High Efficiency Loudspeaker Amplifiers And Multi-purpose Adc
• Manufacturer: National Semiconductor Corporation

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AUDIO PATH GAIN W/ STEREO (bit 6 of 0x00h) ENABLED (AUX_L & AUX_R signals identical and selected onto mixer)
10.0 Electrical Characteristics
BB_V
otherwise stated. Limits apply for 25˚C. (Continued)
Symbol
DD
= 1.8V, A_V
Loudspeaker Audio Path Gain
Headphone Audio Path Gain
Earpiece Audio Path Gain
AUXOUT Audio Path Gain
CPOUT Audio Path Gain
DD
= 3.3V, LS_V
Parameter
DD
= 3.3V. The following specifications apply for the circuit shown in Figure 2 unless
(Notes 1, 2) Unless otherwise stated PLL_V
Minimum Gain from AUX input,
BOOST OFF
Maximum Gain from AUX input,
BOOST OFF
Minimum Gain from CPI input
Maximum Gain from CPI input
Minimum Gain from AUX input,
BOOST OFF
Maximum Gain from AUX input,
BOOST OFF
Minimum Gain from CPI input
Maximum Gain from CPI input
Minimum Gain from MIC input using
SIDETONE path w/ VCR
6dB
Maximum Gain from MIC input using
SIDETONE path w/ VCR
6dB
Minimum Gain from AUX input,
BOOST OFF
Maximum Gain from AUX input,
BOOST OFF
Minimum Gain from CPI input
Maximum Gain from CPI input
Minimum Gain from MIC input using
SIDETONE path w/ VCR
6dB
Maximum Gain from MIC input using
SIDETONE path w/ VCR
6dB
Minimum Gain from AUX input,
BOOST OFF
Maximum Gain from AUX input,
BOOST OFF
Minimum Gain from CPI input
Maximum Gain from CPI input
Minimum Gain from AUX input,
BOOST OFF
Maximum Gain from AUX input,
BOOST OFF
Minimum Gain from MIC input
Maximum Gain from MIC input
14
Conditions
MIC
MIC
MIC
MIC
gain =
gain =
gain =
gain =
DD
(Note 6)
Typical
–34.5
–22.5
–52.5
–40.5
–40.5
–28.5
–46.5
–34.5
–46.5
–30
–18
–6
= 3.3V, D_V
12
24
18
12
12
36
6
0
6
0
0
6
LM4935
(Note 7)
Limit
DD
= 3.3V,
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB