SA5753 Datasheet, PDF (2/15 Pages) NXP Semiconductors – Audio processor - filter and control section

Philips Semiconductors
Audio processor – filter and control section
Product specification
SA5753
DESCRIPTION
The SA5753 is a high performance low power CMOS audio signal
processing system especially designed to meet the requirements for
small size and low voltage operation of hand-held equipment. The
SA5753 subsystem includes complementary transmit/receive voice
band (300-3000Hz), switched capacitor bandpass filters with
pre-emphasis and de-emphasis respectively, a transmit low pass
filter, peak deviation limiter for transmit, digitally controlled
attenuators for signal level and volume control, audio path mute
switches, a programmable DTMF generator, power-down circuitry
for low current standby, power-on reset capability, and an I²C
interface. When the SA5753 is used with an SA5752 (companding
function), the complete audio processing system of an AMPS,
TACS, NAMPS or NTACS cellular telephone is easily implemented.
The system also meets the requirements of the proposed NAMPS or
NTACS specification, and can be used in cordless telephone
applications.
The SA5753 can be operated without the I²C bus interface by
pulling DFT (Pin 13) HIGH.
BENEFITS
• Very compact application
• Long battery life in portable equipment
• Complete cellular audio function with the SA5752
APPLICATIONS
• Cellular radio
• Mobile communications
• High performance cordless telephones
• 2-way radio
PIN CONFIGURATION
DK Package
TXBF_IN ¹
TXBF_OUT ²
PREMP_IN ³
V_DD 4
VOX_CTL ⁵
HPDN ⁶
DEMP_OUT ⁷
AUDIO_IN 8
SPKR_OUT ⁹
EAR_OUT ¹⁰
SA5753
20 _TXOUT
19 _DATAIN
18 TX MUTE
17 SDA
16 _SCL
15 GND
14 _CLKIN
13 DFT
12 RX MUTE
11 RX DEMOD_IN
Figure 1. Pin Configuration
SR00666
FEATURES
• Low 3V supply
• Miniature SSOP package
• Low power
• High performance
• Built-in programmable DTMF generator
• Built-in digitally controlled attenuators for modulation and volume
control
• Built-in peak-deviation limiter
• I²C Bus controlled
• Power-on reset
• Power down capability
• Programmable mute control
• Meets AMPS/TACS/NAMPS/NTACS requirements
ORDERING INFORMATION
DESCRIPTION
20-Pin Plastic Shrink Small Outline Package (SSOP)
TEMPERATURE RANGE
-40 to +85°C
ORDER CODE
SA5753DK
DWG #
SOT266-1
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V_DD
V_IN
PARAMETER
Power supply voltage range
Voltage applied to any other pin
Storage temperature
T_A
Ambient operating temperature
RATING
-0.3 to 6
-0.3 to V_DD+0.3
-65 to +150
-40 to +85
UNIT
V
V
o_C
°C
1997 Nov 07
2
853-1722 18666