Datasheet

TLV320DAC3100
SLAS671A –FEBRUARY 2010–REVISED MAY 2012 www.ti.com
Electrical Characteristics (continued)
At 25°C, AVDD = HPVDD = IOVDD = 3.3 V, SPKVDD = 3.6 V, DVDD = 1.8 V, f
S
(audio) = 48 kHz, CODEC_CLKIN = 256 ×
f
S
, PLL = Off, VOL/MICDET pin disabled (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DAC Lineout (HP Driver in Lineout Mode)
SNR Signal-to-noise ratio Measured as idle-channel noise, A-weighted 95 dB
THD Total harmonic distortion 0-dBFS input, 0-dB gain –86 dB
THD+N Total harmonic distortion + noise 0-dBFS input, 0-dB gain –82 dB
DAC Digital Interpolation Filter Characteristics
See Section 5.5.1.4 for DAC interpolation filter characteristics.
DAC Output to Class-D SPEAKER OUTPUT; Load = 4 Ω (Differential), 50 pF
SPKVDD = 3.6 V, BTL measurement, DAC input = 0 dBFS, CM = 1.8 V, class-D gain = 6 dB,
2.3
THD ≤ –16.5 dB
Output voltage Vrms
SPKVDD = 3.6 V, BTL measurement, DAC input = –2 dBFS, CM = 1.8 V, class-D gain = 6
2.1
dB, THD ≤ –20 dB
Output, common-mode SPKVDD = 3.6 V, BTL measurement, DAC input = mute, class-D gain = 6 dB 1.8 V
SPKVDD = 3.6 V, BTL measurement, class-D gain = 6 dB, measured as idle-channel noise,
SNR Signal-to-noise ratio 88 dB
A-weighted (with respect to full-scale output value of 2.3 Vrms)
THD Total harmonic distortion SPKVDD = 3.6 V, BTL measurement, DAC input = –6 dBFS, CM = 1.8 V, class-D gain = 6 dB –65 dB
THD+N Total harmonic distortion + noise SPKVDD = 3.6 V, BTL measurement, DAC input = –6 dBFS, CM = 1.8 V, class-D gain = 6 dB –63 dB
PSRR Power-supply rejection ratio SPKVDD = 3.6 V, BTL measurement, ripple on SPKVDD = 200 mVp-p at 1 kHz –44 dB
Mute attenuation 110 dB
SPKVDD = 3.6 V, BTL measurement, CM = 1.8 V, class-D gain = 18 dB, THD = 10% 1
P
O
Maximum output power SPKVDD = 4.3 V, BTL measurement, CM = 1.8 V, class-D gain = 18 dB, THD = 10% 1.5 W
SPKVDD = 5.5 V, BTL measurement, CM = 1.8 V, class-D gain = 18 dB, THD = 10% 2.5
DAC Output to Class-D Speaker Output; Load = 8 Ω (Differential), 50 pF
SPKVDD = 3.6 V, BTL measurement, DAC input = 0 dBFS, CM = 1.8 V, class-D gain = 6 dB,
2.2
THD ≤ –16.5 dB
Output voltage Vrms
SPKVDD = 3.6 V, BTL measurement, DAC input = –2 dBFS, CM = 1.8 V, class-D gain = 6
2.1
dB, THD ≤ –20 dB
Output, common-mode SPKVDD = 3.6 V, BTL measurement, DAC input = mute, class-D gain = 6 dB 1.8 V
SPKVDD = 3.6 V, BTL measurement, class-D gain = 6 dB, measured as idle-channel noise,
SNR Signal-to-noise ratio 87 dB
A-weighted (with respect to full-scale output value of 2.2 Vrms)
THD Total harmonic distortion SPKVDD = 3.6 V, BTL measurement, DAC input = –6 dBFS, CM = 1.8 V, class-D gain = 6 dB –67 dB
THD+N Total harmonic distortion + noise SPKVDD = 3.6 V, BTL measurement, DAC input = –6 dBFS, CM = 1.8 V, class-D gain = 6 dB –66 dB
PSRR Power-supply rejection ratio
(1)
SPKVDD = 3.6 V, BTL measurement, ripple on SPKVDD = 200 mVp-p at 1 kHz –44 dB
Mute attenuation 110 dB
SPKVDD = 3.6 V, BTL measurement, CM = 1.8 V, class-D gain = 18 dB, THD = 10% 0.7
P
O
Maximum output power SPKVDD = 4.3 V, BTL measurement, CM = 1.8 V, class-D gain = 18 dB, THD = 10% 1 W
SPKVDD = 5.5 V, BTL measurement, CM = 1.8 V, class-D gain = 18 dB, THD = 10% 1.6
Output-stage leakage current for
SPKVDD = 4.3 V, device is powered down (power-up-reset condition) 80 nA
direct battery connection
DAC POWER CONSUMPTION
For DAC power consumption based per selected processing block, see Section 5.3.
DIGITAL INPUT/OUTPUT
Logic family CMOS
0.7 ×
I
IH
= 5 μA, IOVDD ≥ 1.6 V
IOVDD
V
IH
V
I
IH
= 5 μA, IOVDD < 1.6 V IOVDD
0.3 ×
I
IL
= 5 μA, IOVDD ≥ 1.6 V –0.3
IOVDD
V
IL
V
Logic level
I
IL
= 5 μA, IOVDD < 1.6 V 0
0.8 ×
V
OH
I
OH
= two TTL loads V
IOVDD
0.1 ×
V
OL
I
OL
= two TTL loads V
IOVDD
Capacitive load 10 pF
(1) DAC to speaker-out PSRR is a differential measurement calculated as PSRR = 20 × log( ΔV
SPK(P + M)
/ ΔV
SPKVDD
) .
6 ELECTRICAL SPECIFICATIONS Copyright © 2010–2012, Texas Instruments Incorporated
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