Datasheet.kr   

AT73C240 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT73C240은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AT73C240 자료 제공

부품번호 AT73C240 기능
기능 Analog Companions
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


AT73C240 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 30 페이지수

미리보기를 사용할 수 없습니다

AT73C240 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Features
Stereo Audio DAC
– 2.7V to 3.3V Analog Supply Operation
– 2.4V to 3.3V Digital Supply Operation
– 20-bit Stereo Audio DAC
– 90 dB SNR Playback Stereo Channels
– 32 Ohm/20 mW Stereo Headset Drivers with Master Volume and Mute Controls
– Stereo Line Level Input with Volume Control/Mute and Playback through the
Headset Drivers
– Accepts Mixed Signals from All Signal Paths (Line Inputs and DAC Output)
– 8, 11.024, 16, 22.05, 24, 32, 44.1 and 48 kHz Sampling Rates
– 256x or 384xFs Master Clock Frequency
– I2S Serial Audio Interface
Mono Audio Power Amplifier
– Supply Input from Main Li-Ion Battery (3V to 5.5V)
– 440 mW on 8 Ohm Load
– Programmable Volume Control (-22 to +20 dB)
– Fully Differential Structure, Input and Output
– 8 mA Drain Current in Active Mode
– Power-down Mode (Consumption Less than 2 µA)
– Minimum External Components (Direct Connection to the Loudspeaker)
Applications: Mobile Phones, Digital Cameras, PDAs, SmartPhones, DECT Phones,
Music Players
1. Description
The AT73C240 is a fully integrated, low-cost, combined stereo audio DAC and audio
power amplifier circuit targeted for Li-Ion or Ni-Mh battery powered devices such as
mobile phones, smartphones, PDA, DECT phones, digital still cameras, music players
or any other type of handheld device where an audio interface is needed.
The stereo DAC section is a complete high performance, stereo, audio digital-to-ana-
log converter delivering a 90 dB dynamic range. It comprises a multibit sigma-delta
modulator with dither, continuous time analog filters and analog output drive circuitry.
This architecture provides a high insensitivity to clock jitter. The digital interpolation fil-
ter increases the sample rate by a factor of 8 using 3 linear phase half-band filters
cascaded, followed by a first order SINC interpolator with a factor of 8. This filter elim-
inates the images of baseband audio, retaining only the image at 64x the input sample
rate, which is eliminated by the analog post filter. Optionally, a dither signal can be
added that reduces possible noise tones at the output. However, the use of a multibit
sigma-delta modulator already provides extremely low noise tone energy.
Master clock is 256 or 384 times the input data rate, allowing choice of input data rate
up to 48 kHz, including standard audio rates of 48, 44.1, 32, 16 and 8 kHz.
The DAC section is followed by a volume and mute control and can be simultaneously
played back directly through a stereo 32 Ohm headset pair of drivers.
The stereo 32 Ohm headset pair of drivers also includes a mixer of a LINEL and
LINER pair of stereo inputs.
Power
Management
and Analog
Companions
(PMAAC)
AT73C240
Audio Interface
for Portable
Handsets
6464A–PMAAC–28-Apr-09




AT73C240 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
4. Electrical Characteristics
Table 4-1. Absolute Maximum Ratings*
Operating Temperature (Industrial)..............-40° C to +85° C
*NOTICE:
Storage Temperature-...................................55°C to +150°C
Power Supply Input
on VBAT-...........................................................0.3V to +5.5V
on VDIG, AVDD, AVDDHS-...............................0.3V to +3.6V
Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at these or other conditions beyond those
indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reli-
ability.
5. Digital IOs
All the digital IOs: SDIN, BCLK, LRFS, MCLK, RSTB, SMODE, SPI_DOUT, SPI_DIN/TWD, SPI_CLK/TWCK,
SPI_CSB/TW_ADD are referred to as VDIG.
Table 5-1. Digital IOs
Symbol Parameter
VIL Low level input voltage
VIH High level input voltage
VOL Low level output voltage
VOH
High level output voltage
Conditions
Guaranteed input low Voltage
Guaranteed input high Voltage
IOL = 2 mA
IOH = 2 mA
VDIG
from 2.4Vto 3.3 V
from 2.4Vto 3.3 V
from 2.4Vto 3.3 V
from 2.4Vto 3.3 V
Min
-0.3
0.8 x VDIG
VDIG - 0.5V
Max
0.2 x VDIG
VDIG + 0.3
0.4
Unit
V
V
V
V
4 AT73C240
6464A–PMAAC–28-Apr-09

4페이지










AT73C240 전자부품, 판매, 대치품
www.DataSheet4U.com
Table 7-1. Electrical Specifications (Continued)
Min
Maximum output slope at power up (100 to 220 µF coupling capacitor)
Analog Performance - Line-in/Microphone Input to Line-out/Headphone Output
Output level
@ AVDD, AVDDHS = 2.7 V and 0 dB gain, 500mV Rms
input level, 2 X 10k Ohms loads (HSL, HSR)
@ AVDD, AVDDHS = 2.7 V and 20 dB gain, 500mV Rms
input level, 2 X 32 Ohms loads (HSL, HSR)
Input common mode voltage
Input impedance
7
Signal to Noise Ratio
500mV Rms @ 1kHz input and 0 dB gain
50mV Rms @ 1kHz input and 20 dB gain
80
Dynamic Range (extrapolated to nominal 500mV level)
-60 dBr (500 mVrms)@ 1kHz input and 0 dB gain (10k Ohms load)
-60 dBr 50 mVrms) @ 1kHz input and 20 dB gain (10k Ohms load)
Total Harmonic Distortion, A-Weighted, line 10k Ohms load
500mV Rms @ 1kHz input and 0 dB gain
50mV Rms @ 1kHz input and 20 dB gain
Total Harmonic Distortion, A-Weighted, line 32 Ohms load
500mV Rms @ 1kHz input and 0 dB gain
50mV Rms @ 1kHz input and 20 dB gain
Interchannel mismatch
Left-channel to right-channel crosstalk (300Hz to 20kHz)
Analog Performance - PA Driver
Differential output level for one input 500mV Rms singlel
@ AVDD, AVDDHS = 2.8 V
Differential output level for stereo inputs 500mV Rms singlel
@ AVDD, AVDDHS = 2.8 V, inputs internally summed
Output common mode voltage
Output load (on each input, DC decoupled to the ground)
10
Gain (one single input to differential output), 20Hz to 20kHz
Signal to Noise Ratio (500mV Rms output @ 1kHz)
Total Harmonic Distortion (500mV Rms @ 1kHz output)
2 x 10kOhm balanced load
-05
Typ
1.62
570
1.58
560
0.5 x AVDD
10
85
70
85
85
-85
-78
-70
-65
0.1
-65
500
1
0.5xAVDDHS
50
0
80
-80
AT73C240
Max Units
3 V/s
Vpp
mVrms
Vpp
mVrms
V
kOhm
dB
dB
dB
dB
-80 dB
-70 dB
-60 dB
-55 dB
1 dB
dB
mVrms
Vrms
V
kOhm
30 pF
0.5 dB
dB
dB
6464A–PMAAC–28-Apr-09
7

7페이지


구       성 총 30 페이지수
다운로드[ AT73C240.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
AT73C240

Analog Companions

ATMEL Corporation
ATMEL Corporation
AT73C246

Power Management Unit

ATMEL Corporation
ATMEL Corporation

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵