TDA7500 Datasheet, PDF (8/14 Pages) STMicroelectronics – DIGITAL AM/FM SIGNAL PROCESSOR

TDA7500
RECOMMENDED DC OPERATING CONDITIONS
Symbol
VDDC
Tj
Parameter
3.3V Power Supply Voltage
Operating Junction Temperature
Test Condition
Min. Typ. Max. Unit
3
3.3
3.6
V
-40
125
°C
POWER CONSUMPTION
Symbol
Idd
Parameter
Maximum current for core power supply @3.3V
Value
Unit
450
mA
Note: 43MHz internal DSP clock at Tamb
ADC PERFORMANCE Some of the relevant ADC parameters are reported in the following table:
(T = 25°C, AVDD = 3.3V, measurement bandwidth 10Hz to 20KHz, A-Weighted Filter.)
Symbol
Parameter
Maximum input level (1)
Sample rate
Frequency Response
Instant Dynamic Range
SNR
(THD + N)/S
PSRR
Input Impedance
Crosstalk
Gain mismatch between four
input
CMRR
CM Input range
Test Condition
@ 20KHz with f_s = 44.1KHz
-60dB analog input
1KHz; -3dB analog input
-3dB analog input
0.1Vp @ 1KHz
1Vrms input @ 15KHz
@ 1KHz
@ 1KHz
(1) Corresponding to 2VRMS Maximum Differential Input.
Min.
32
90
90
45
10
70
-0.5
Typ.
-3
93
93
-85
30
Max.
1
48
0.5
Unit
Vrms
KHz
dB
dB
dB
dB
dB
KΩ
dB
dB
40
dB
100 mV
DAC PERFORMANCE Some of the relevant DAC parameters are reported in the following table:
(T = 25°C, AVDD = 3.3V, measurement bandwidth 10Hz to 20KHz, A-Weighted Filter 0dB gain, output
load 30kΩ)
Symbol
Parameter
Maximum output level (1)
Sample rate
Frequency Response
Dynamic Range
SNR
Total D R
Digital Silence
(THD + N)/S
PSRR
Output Impedance
Crosstalk
Gain mismatch between six
outputs
Test Condition
@ 20KHz with f_s = 44.1KHz
-60dB analog input
1KHz -3dB analog output
0000$ digital input
-3dB analog input
0.1Vp @ 1KHz
1Vrms output @ 15KHz
@ 1KHz
Min.
32
90
90
45
30
70
-0.5
Typ.
-3
93
93
100
93
-85
Max.
1
48
0.5
Unit
Vrms
KHz
dB
dB
dB
dB
dB
dB
dB
kΩ
dB
dB
(1) Corresponding to 2VRMS Maximum Differential Output.
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