Datasheet

TAS5548
SLES270 –NOVEMBER 2012 www.ti.com
7.5 Electrical Characteristics
At recommended operating conditions - 25°C Operating Temp, 3.3V Power Supplies with 48kHz input data unless otherwise
specified
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
3.3-V TTL and 5-V tolerant
(1)
I
OH
= –4 mA 2.4
V
OH
High-level output voltage V
1.8-V LVCMOS (XTL_OUT) I
OH
= –0.55 mA 1.44
3.3-V TTL and 5-V tolerant
(1)
I
OL
= 4 mA 0.5
V
OL
Low-level output voltage V
1.8-V LVCMOS (XTL_OUT) I
OL
= 0.75 mA 0.5
I
OZ
High-impedance output current 3.3-V TTL ±20 μA
3.3-V TTL V
I
= V
IL
±1
I
IL
Low-level input current 1.8-V LVCMOS (XTL_IN) V
I
= V
IL
±1 μA
5-V tolerant
(2)
V
I
= 0 V, DVDD = 3 V ±1
3.3-V TTL V
I
= V
IH
±1
I
IH
High-level input current 1.8-V LVCMOS (XTL_IN) V
I
= V
IH
±1 μA
5-V tolerant
(2)
V
I
= 5.5 V, DVDD = 3 V ±1
Input f
S
= 48 kHz 220
Digital supply voltage, DVDD
Power down 9
I
DD
Input supply current mA
Input f
S
= 48 kHz 8
Analog supply voltage, AVDD
Power down 8
(1) 5-V tolerant signals are SDA, SCL, RESET, PDN, MUTE, HP_SEL, SCLK, LRCLK, MCLK, SDIN1, SDIN2, SDIN3, and SDIN4.
(2) 5-V tolerant signals are RESET, PDN, MUTE, HP_SEL, SCLK, LRCLK, MCLK, SDIN1, SDIN2, SDIN3, SDIN4, SDA, and SCL.
7.6 SRC Performance
ASRC Performance is shown in
Table 7-1. ASRC Performance
Attribute Value
SRC Latency 102.53125/FSin + 36.46875/FSout
THD+N @ 1kHz
Pass Band Ripple
±0.05dB
(worst case)
SRC Channel Gain <1 (slightly lower to compensate for ripple)
Stop Band Attenuation 130dB
Pass Band Edge 0.425 FS-in
Stop Band Edge 0.575 FS-in
7.7 Switching Characteristics
7.7.1 Clock Signals
PLL input parameters and external filter components over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
External PLL filter capacitors SMD 0603 X7R 100 nF
External PLL filter capacitors SMD 0603 X7R 10 nF
External PLL filter resistors SMD 0603, metal film, 1% 200 Ω
External VRA_PWM decoupling C14 SMD 0603 X7R 100 nF
12.28
TAS5548: XTAL Frequency MHz
8
TAS5548: XTAL Frequency Tolerance at
±50 ppm
25°C
48 Electrical Specifications Copyright © 2012, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TAS5548