TEA6845AH Ver la hoja de datos (PDF) - Philips Electronics

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TEA6845AH

New In Car Entertainment (NICE) car radio

Philips Electronics 

Philips Semiconductors

New In Car Entertainment (NICE) car radio

Product specification

TEA6845AH; TEA6845H

SYMBOL

PARAMETER

CONDITIONS

On-chip power supply reference current generator: pin Iref

Vo(ref)

Ro

Io(max)

output reference voltage

output resistance

maximum output current

MIN. TYP. MAX. UNIT

4

4.25

8

11

−100 −

4.5

V

13

kΩ

+100 nA

11 AC CHARACTERISTICS

VDDA1 = VDDA3 = VDDA4 = VDDA5 = VDDA6 = 8.5 V; VDDA2 = 5 V; VDDD = 5 V; Tamb = 25 °C; see Figs 9 and 10; unless

otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX. UNIT

Voltage controlled oscillator

fosc

oscillator frequency

C/N

carrier-to-noise ratio

151.2

−

fosc = 200 MHz; ∆f = 10 kHz −

101

248.2

−

MHz

-d----B----c--

Hz

RR

ripple rejection

fripple = 100 Hz;

VDDA3(ripple) = 100 mV (RMS)

fosc = 250 MHz

−

97

−

dB

fosc = 200 MHz

−

99

−

dB

FEEDBACK INPUT: PIN OSCFDB

Vi(bias)

input bias voltage

2.2

2.8

3.4

V

TANK CIRCUIT OUTPUT: PIN OSCTNK

VO

Vo(rms)

DC output voltage

AC output voltage

(RMS value)

fosc = 200 MHz

5

6.1

7.2

V

−

1.5

−

V

Crystal oscillator

fxtal

crystal frequency

Rxtal

crystal motional

resistance

Cxtal

crystal shunt capacitance

C/N

carrier-to-noise ratio

start of operating

fxtal = 20.5 MHz (10.25 MHz);

∆f = 10 kHz

20.4996

−

−

−

20.5

−

−

112

20.5004 MHz

500

Ω

18

pF

−

-d----B----c--

Hz

CIRCUIT INPUTS: PINS XTAL1, XTAL2 AND XTALGND

Vxtal(rms)

crystal voltage

(RMS value)

note 2

−

350

−

mV

VXTAL1,

VXTAL2

Ri

DC bias voltage

real part of input

impedance

1.7

2.1

2.5

V

VXTAL1 − VXTAL2 = 1 mV;

−500

−

−

Ω

note 1

Ci

input capacitance

note 1

8

10

12

pF

2001 Apr 12

12

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