TDA7580 Datasheet, PDF (12/31 Pages) STMicroelectronics – FM/AM DIGITAL IF SAMPLING PROCESSOR

TDA7580
CURRENT CONSUMPTION (continued)
Symbol
Parameter
Test Condition
Min. Typ. Max.
I_OSCac Current through V_OSC Power
Supply
V_DD=1.8V,VDD3=3.3V
with quartz in FM mode
11
14
17
I_MTR Current through V_MTR Power
V_DD=1.8V,VDD3=3.3V
5
Supply
Note: 74.1MHz internal DSP clock, at T_amb = 25°C. Current due to external loads not included.
OSCILLATOR CHARACTERISTICS
Symbol
Parameter
Test Condition
Min. Typ. Max.
F_OSCFM Oscillator Frequency (XTI/XTO)
V_OSC @ 3.3V
74.1
F_OSCAM Oscillator Frequency (XTI/XTO)
V_OSC @ 3.3V
74.106
Notes: 1. The accuracy of this figure only depends on the quartz frequency precision: high stability oscillator
Unit
mA
mA
Unit
MHz
MHz
QUARTZ CHARACTERISTICS
Parameter Name
Temperature range
Adjustment tolerance (@ 25°C ± 3°C)
Frequency stability (-20°C ÷ +70°C)
Aging @ 25°C
Shunt (static) capacitance (Co)
Packages (holders)
Mode of oscillation
Resonance resistance (ESR)
Oscillation Frequency (without external load)
Oscillation Frequency (12pF parallel load)
Parameter Value
-55°C ÷ +125°C
+/-20ppm
+/-50ppm
5ppm/year
<6pF
UM-1; HC-52U; HC-35; HC-48U; HC-49U; HC-50U; HC-51U
AT-3^rd
<35ohm
≥74108000 Hz
target 74.1MHz
DSP CORE
Symbol
Parameter
F_dspMax Maximum DSP clock frequency
Test Condition
At 1.7V Core Power Supply and
125°C junction temperature
Min.
81.5
Typ.
Max.
Unit
MHz
FM STEREO DECODER CHARACTERISTICS
Symbol
Parameter
a_ch Channel Separation
THD Total Harmonic Distortion
(S+N)/N Signal plus Noise to Noise ratio
Test Condition
Min. Typ. Max. Unit
50
dB
0.02
%
80
dB
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