TS4851 BTL DRIVERS Datasheet

TS4851 Datasheet, PDF, Equivalent


Part Number

TS4851

Description

MONO 1W SPEAKER AND STEREO 160 mW HEADSET BTL DRIVERS

Manufacture

STMicroelectronics

Total Page 28 Pages
Datasheet
Download TS4851 Datasheet


TS4851
TS4851
Mono 1W Speaker and Stereo 160mW Headset
BTL Drivers with Digital Volume Control
Operating from VCC = 3V to 5.5V
Pin Connections (top view)
Rail to rail input/output
Speaker driver with 1 W output @ Vcc = 5V,
THD+N = 1%, F = 1kHz, 8load
Headset drivers with 160 mW output @
)Vcc = 5V, THD+N = 1%, F = 1kHz, 32load
t(sHeadset output is 30mW in stereo @
cVcc = 3V
uTHD+N < 0.5% Max @ 20mW into 32BTL,
d50Hz < Frequency < 20kHz
ro32-step digital volume control from -
P34.5dB to +12dB
te+6dB power up volume and full standby
le8 different output modes
oPop & click reduction circuitry
sLow shutdown current (< 100nA)
bThermal shutdown protection
- OFlip-chip package 18 x 300µm bumps
t(s)Description
cThe TS4851 is a low power audio amplifier that
ucan drive either both a mono speaker or a stereo
dheadset. To the speaker, it can deliver 400 mW
ro(typ.) of continuous RMS output power into an 8
Pload with a 1% THD+N value. To the headset
tedriver, the amplifier can deliver 30 mW (typ.) per
lechannel of continuous average power into a
ostereo 32 bridged-tied load with 0.5% THD+N
s@ 3.3V.
ObThis device features a 32-step digital volume
TS485IJT - Flip-chip
TS485EIJT - Lead free Flip-chip
Pin Out (top view)
R
OUT<
-
R
IN
PHONE
IN
BYPASS
R
OUT +
L
IN
SPKR
OUT+
GND
VCC
L
OUT +
VCC
GND
NC
SPKR
OUT -
L
OUT -
DATA
ENB
CLK
control and 8 different output selections. The
digital volume and output modes are controlled
through a three-digit SPI interface bus.
Applications
Mobile Phones
Order Codes
Part Number
TS4851IJT
TS4851EIJT
Temperature Range
-40, +85°C
Package
Flip-Chip
Lead free Flip-Chip
J = Flip Chip Package - only available in Tape & Reel (JT))
Packaging
Tape & Reel
Marking
A51
A51
March 2005
Revision 5
1/28

TS4851
TS4851
1 Application Information
Figure 1: Application information for a typical application
Application Information
solete Product(s) - Obsolete Product(s)Table 1. External component description
ObComponent
Functional Description
Cin This is the input coupling capacitor. It blocks the DC voltage at, and couples the input signal to the
amplifier’s input terminals. Cin also creates a highpass filter with the internal input impedance Zin at Fc
=1/ (2πi x Zin x Cin).
Cs This is the Supply Bypass capacitor. It provides power supply filtering.
CB This is the Bypass pin capacitor. It provides half-supply filtering.
2/28


Features TS4851 Mono 1W Speaker and Stereo 160mW Headset BTL Drivers with Digital Volume Control ■ Operating from VCC = 3V t o 5.5V Pin Connections (top view) ■ Rail to rail input/output ■ Speaker driver with 1 W output @ Vcc = 5V, TH D+N = 1%, F = 1kHz, 8Ω load ■ Head set drivers with 160 mW output @ )Vcc = 5V, THD+N = 1%, F = 1kHz, 32Ω load t (s■ Headset output is 30mW in stereo @ cVcc = 3V u■ THD+N < 0.5% Max @ 20m W into 32Ω BTL, d50Hz < Frequency < 2 0kHz ro■ 32-step digital volume contr ol from - P34.5dB to +12dB te■ +6dB p ower up volume and full standby le■ 8 different output modes o■ Pop & clic k reduction circuitry s■ Low shutdown current (< 100nA) b■ Thermal shutdow n protection - O■ Flip-chip package 1 8 x 300µm bumps t(s)Description cThe T S4851 is a low power audio amplifier th at ucan drive either both a mono speake r or a stereo dheadset. To the speaker, it can deliver 400 mW ro(typ.) of cont inuous RMS output power into an 8Ω Pload with a 1% THD+N valu.
Keywords TS4851, datasheet, pdf, STMicroelectronics, MONO, 1W, SPEAKER, AND, STEREO, 160, mW, HEADSET, BTL, DRIVERS, S4851, 4851, 851, TS485, TS48, TS4, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




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