TDA7478_11 Datasheet, PDF (6/11 Pages) STMicroelectronics – Single chip RDS demodulator

Electrical specifications
TDA7478
Table 5. Electrical characteristics (continued)
Symbol
Parameter
Test condition
S_ARI
V_REF
ARI detection sensitivity
Reference
-
-
Demodulator
Min.
3
-
Typ.
-
V_S/2
Max. Unit
- mVrms
-
V
Input pins (EXTRES, FSEL, TM) all with internal pull down resistor
Input pin (OSEL)
with internal pull up resistor
I_PD Input current
I_PU Input current
V_IH Input voltage high
VIL Input voltage low
Output pins (RDCL, RDDA, QUAL, T57)
V_IN = 5 V (pull-down input)
V_IN = 0 V (pull-up input)
-
-
15
-
30
μA
-25
-
-10
μA
0.7 · V_S 0.8 · V_S -
V
- 0.2 · V_S 0.3 · V_S V
V_OH Output voltage high
V_OL Output voltage low
I_L = 0.5 mA
I_L = 0.5 mA
Oscillator
4
4.6
-
V
-
0.4
1
V
VCLL Input level OSCIN pin
OSEL = open circuit
-
-
Input level OSCIN pin
VCLH
Amplitude OSCOUT
OSEL = open circuit
OSEL = open circuit
4
-
-
4.5
Amplitude OSCIN
V_{PP (for external drive)}
OSEL = GND, f = 4.332 MHz
OSEL = GND, f = 8.664 MHz
100
-
120
1. The 3^rd harmonic (57 kHz) must be less than -40 dB with respect to the input signal plus gain.
1
V
-
V
-
V
mVpp
-
mVpp
6/11
Doc 10679 Rev 3