TDA7333 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7333

RDS/RBDS processor

STMicroelectronics 

TDA7333N

Electrical specifications

Table 5.

Symbol

Electrical characteristics (continued)

Tamb = -40 to +85 °C, VDDA/VDDD = 3.0 to 3.6 V, fosc = 8.55 MHz, unless otherwise specified

VDDD and VDDA must not differ more than 0.15 V

Parameter

Test conditions

Min. Typ. Max. Unit

Digital inputs( pin 6,8,11,12,13,14)

Vil Low level input voltage

Vih High level input voltage

2.0

Vilhyst

Low level threshold input

falling

1.0

Vihhyst

High level threshold input

rising

1.5

Vhst Schmitt trigger hysteresis

0.4

Digital outputs (pin 12,13,15) are open drains

Voh High level output Voltage

Open drain, depends on external

circuitry

n/a

Vol Low level output Voltage

Iol =4 mA, takes into account

200 mV drop in the supply voltage

Analog inputs (pin 16)

VMPX Input Range of MPX Signal

Input Impedance of MPX pin

55k

Electrolyte capacitor parallel to

2.2

Cref

Blocking Capac. of REF Pins

ceramic capacitor

100

Crystal/oscillator parameters

fosc Quartz frequency

foto

Total quartz frequency

tolerance

Tamb = -40 to 85 °C

4 10.25

tsu Start up time

gm Oscillator transconductance

0.0006

Cxti,Cxto Load capacitance

With crystal between XTI and XTO

16

External XTI input frequency mode (pin 9)

fexti

Externaly applied XTI

frequency

Vxti XTI input voltage

With Rxto = 3.3 kOhm,

and fexti = 10.25 MHz

Cin

Coupling capacitor for external

clock frequency

Rxto XTO pull up to VDDD

4 10.25

220

100

3.3

0.8

V

V

1.15 V

1.7

V

0.7

V

V

0.4

V

0.75 Vrms

Ohm

μF

nF

21 MHz

100 ppm

10 ms

A/V

pF

21 MHz

mVpp

pF

kΩ

9/36

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