LM4930LQBD National Semiconductor, LM4930LQBD Datasheet - Page 12

• Manufacturer Part Number: LM4930LQBD
• Description: BOARD EVALUATION LM4930LQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4930LQBD

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm; 27mW x 2 @ 32 Ohm
• Voltage - Supply: 2.6 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4930
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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LPB
SBA
SBA
R
PB
SBA
DR
SNR
∆A
V
V
f
f
f
t
t
t
t
MCLK
CONV
CLKSCL
RISESCL
FALLSCL
SDAH
SDAS
Symbol
DAC
IL
IH
Electrical Characteristics DV
(Notes 1, 2, 8) (Continued)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
CH-CH
DAC
DAC
VADC
VADC
NOTCH
DAC
DAC
Voice ADC Lower Passband
Cutoff Frequency.
Voice ADC Stopband Attenuation
Voice ADC Notch Attenuation
Audio DAC Ripple
Audio DAC Passband Width
Audio DAC Stopband Attenuation
Audio DAC Dynamic Range
Digital Filter Section
Audio DAC SNR Digital Filter
Section
Stereo Channel-to-Channel Gain
Mismatch
Digital Input: Logic Low Voltage
Level
Digital Input: Logic High Voltage
Level
Volume Control Range
(Headphone amplifiers)
Volume Control Range (Mono
speaker amplifier)
Volume Control Step Size (Output
amplifiers)
Volume Control Range
(Microphone Preamp)
Volume Control Step Size
(Microphone Preamp)
Side Tone Attenuation Range
Side Tone Attenuation Step Size
MCLK frequency
MCLK Duty Cycle
Sampling Clock Frequency (Note
9)
SCL_CLK Frequency
SCL_CLK, SCL_DATA Rise Time
SCL_CLK, SDA_DATA Fall Time
SDA_DATA Hold Time
SDA_DATA Setup Time
Parameter
Lower -3dB Point
Above 4kHz
Centered on 55Hz, figure gives worst
case attenuation for 50Hz & 60Hz.
20Hz - 20kHz through head-phone output.
-3dB point
Above 24kHz
Signal = VO at f = 1kHz
f = 1kHz; Noise for -60dBFS digital input;
0dB gain; A-weighted
Signal = VO at f = 1kHz
f = 1kHz; Noise for -60dBFS digital input;
0dB gain; A-weighted
Maximum Attenuation
Minimum Attenuation
Minimum Gain
Maximum Gain
Minimum Gain
Maximum Gain
Maximum Attenuation
Minimum Attenuation
CLOCK_DIV = 0
CLOCK_DIV = 1
DD
= 3.3V, AV
Conditions
12
@
@
DD
1% THD+N;
1% THD+N;
= 5V, R
LHP
(Note 6)
Typical
12.288
24.576
+/-0.1
0.230
-46.5
-34.5
22.7
400
300
300
500
500
0.3
0.4
1.4
1.5
-30
65
58
76
97
97
12
17
47
50
48
0
2
0
3
= 32Ω, R
LM4930
(Notes 7,
Limits
+/-0.2
15)
40
60
LHF
A
= 25˚C.
= 8Ω
dB (max)
% (max)
(Limits)
% (min)
Units
MHz
MHz
kHz
kHz
kHz
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
ns
ns
V
V