http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf


Texas Instruments
Texas Instruments

DRV632 Datasheet

2-VRMS Audio Line Driver


DRV632 Datasheet Preview


DRV632
www.ti.com
SLOS681 – JANUARY 2011
DirectPath™, 2-VRMS Audio Line Driver With Adjustable Gain
Check for Samples: DRV632
FEATURES
1
23 Stereo DirectPath™ Audio Line Driver
– 2 Vrms Into 10 kWith 3.3-V Supply
• Low THD+N < 0.01% at 2 Vrms Into 10 k
• High SNR, >90 dB
• 600-Output Load Compliant
• Differential Input and Single-Ended Output
• Adjustable Gain by External Gain-Setting
Resistors
• Low DC Offset, <1 mV
• Ground-Referenced Outputs Eliminate
DC-Blocking Capacitors
– Reduce Board Area
– Reduce Component Cost
– Improve THD+N Performance
– No Degradation of Low-Frequency
Response Due to Output Capacitors
• Short-Circuit Protection
• Click- and Pop-Reduction Circuitry
• External Undervoltage Mute
• Active Mute Control for Pop-Free Audio On/Off
Control
• Space-Saving TSSOP Package
APPLICATIONS
• Set-Top Boxes
• Blu-ray Disc™, DVD Players
• LCD and PDP TV
• Mini/Micro Combo Systems
• Sound Cards
• Laptops
DESCRIPTION
The DRV632 is a 2-VRMS pop-free stereo line driver
designed to allow the removal of the output
dc-blocking capacitors for reduced component count
and cost. The device is ideal for single-supply
electronics where size and cost are critical design
parameters.
Designed using TI’s patented DirectPath™
technology, The DRV632 is capable of driving 2 VRMS
into a 10-kload with 3.3-V supply voltage. The
device has differential inputs and uses external
gain-setting resistors to support a gain range of ±1
V/V to ±10 V/V, and gain can be configured
individually for each channel. Line outputs have
±8-kV IEC ESD protection, requiring just a simple
resistor-capacitor ESD protection circuit. The
DRV632 has built-in active-mute control for pop-free
audio on/off control. The DRV632 has an external
undervoltage detector that mutes the output when the
power supply is removed, ensuring a pop-free
shutdown.
Using the DRV632 in audio products can reduce
component count considerably compared to
traditional methods of generating a 2-VRMS output.
The DRV632 does not require a power supply greater
than 3.3 V to generate its 5.6-Vpp output, nor does it
require a split-rail power supply. The DRV632
integrates its own charge pump to generate a
negative supply rail that provides a clean, pop-free
ground-biased 2-VRMS output.
The DRV632 is available in a 14-pin TSSOP.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DirectPath, FilterPro are trademarks of Texas Instruments.
2
Blu-ray Disc is a trademark of Blu-ray Disc Association.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
www.DInnaestctareusSmshaeerniletysti4nscUtlau.ndndeeatrtedstwinagrroafnatyll.paPrraomduectetirosn. processing does not
Copyright © 2011, Texas Instruments Incorporated
Page 1

DRV632
SLOS681 – JANUARY 2011
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
TA
–40°C to 85°C
ORDERING INFORMATION(1)
PACKAGE
DRV632PW
DESCRIPTION
14-Pin
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at www.ti.com.
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range
VALUE
UNIT
Supply voltage, VDD to GND
–0.3 to 4
V
VI Input voltage
RL Minimum load impedance – line outputs – OUTL, OUTR
Mute to GND, UVP to GND
VSS – 0.3 to VDD + 0.3
600
–0.3 to VDD + 0.3
V
V
TJ Maximum operating junction temperature range
Tstg Storage temperature range
–40 to 150
–40 to 150
°C
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
THERMAL INFORMATION
THERMAL METRIC(1)
DRV632
PW
UNIT
qJA
qJCtop
qJB
yJT
yJB
qJCbot
Junction-to-ambient thermal resistance(2)
Junction-to-case (top) thermal resistance(3)
Junction-to-board thermal resistance(4)
Junction-to-top characterization parameter(5)
Junction-to-board characterization parameter(6)
Junction-to-case (bottom) thermal resistance(7)
14 PINS
130
49
63
3.6
62
n/a
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
(3) The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific
JEDEC-standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
(4) The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
(5) The junction-to-top characterization parameter, yJT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining qJA, using a procedure described in JESD51-2a (sections 6 and 7).
(6) The junction-to-board characterization parameter, yJB, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining qJA , using a procedure described in JESD51-2a (sections 6 and 7).
(7) The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
2 Submit Documentation Feedback
Product Folder Link(s): DRV632
Copyright © 2011, Texas Instruments Incorporated
Page 2

DRV632
www.ti.com
RECOMMENDED OPERATING CONDITIONS
VDD
RL
VIL
VIH
TA
Supply voltage
Load impedance
Low-level input voltage
High-level input voltage
Operating free-air temperature
DC supply voltage
Mute
Mute
SLOS681 – JANUARY 2011
MIN NOM MAX UNIT
3 3.3 3.6
V
0.6 10
kΩ
40 % of VDD
60 % of VDD
–40 25 85 °C
ELECTRICAL CHARACTERISTICS
TA = 25°C (unless otherwise noted)
PARAMETER
|VOS| Output offset voltage
PSRR Power-supply rejection ratio
VOH
VOL
VUVP_
EX
VUVP_
EX_HYS
TERESI
S
fCP
|IIH|
|IIL|
High-level output voltage
Low-level output voltage
External UVP detect voltage
External UVP detect hysteresis current
Charge pump switching frequency
High-level input current, Mute
Low-level input current, Mute
IDD Supply current
TEST CONDITIONS
VDD = 3.3 V
VDD = 3.3 V
VDD = 3.3 V
VDD = 3.3 V, VIH = VDD
VDD = 3.3 V, VIL = 0 V
VDD = 3.3 V, no load, Mute = VDD
VDD = 3.3 V, no load, Mute = GND, disabled
MIN TYP
0.5
80
3.1
1.25
MAX
1
–3.05
UNIT
mV
dB
V
V
V
5 µA
200 300
5 14
14
400 kHz
1 µA
1 µA
25
mA
OPERATING CHARACTERISTICS
VDD = 3.3 V, RDL = 10 kΩ, RFB = 30 k, RIN = 15 k, TA = 25°C, Charge pump: CP = 1 µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
VO
Output voltage, outputs in phase
THD+N = 1%, VDD = 3.3 V, f = 1 kHz, RL = 10 kΩ
2 2.4
THD+N Total harmonic distortion plus noise VO = 2 VRMS, f = 1 kHz
SNR
Signal-to-noise ratio(1)
A-weighted
0.002%
90 105
DNR
Dynamic range
A-weighted
90 105
VN Noise voltage
A-weighted
ZO
Output Impedance when muted
Mute = GND
Input-to-output attenuation when
muted
Mute = GND
11
110
80
ILIMIT
Crosstalk—L to R, R to L
Current limit
VO = 1 Vrms
–110
25
(1) SNR is calculated relative to 2-Vrms output.
UNIT
Vrms
dB
dB
mV
mΩ
dB
dB
mA
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): DRV632
Submit Documentation Feedback
3
Page 3
Part Number DRV632
Manufactur Texas Instruments
Description 2-VRMS Audio Line Driver
Total Page 18 Pages
PDF Download
DRV632 datasheet
Download PDF File
DRV632 datasheet
View Html for PC & Mobile


Related Datasheet

DRV632 ,

site map

webmaste! click here

contact us

Buy Components