Philips Semiconductors
Product specification
New In Car Entertainment (NICE) car radio
TEA6845AH; TEA6845H
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
On-chip power supply reference current generator: pin Iref
Vo(ref)
Ro
output reference voltage
output resistance
4
8
4.25
4.5
V
11
13
kΩ
Io(max)
maximum output current
−100
−
+100
nA
11 AC CHARACTERISTICS
DDA1 = VDDA3 = VDDA4 = VDDA5 = VDDA6 = 8.5 V; VDDA2 = 5 V; VDDD = 5 V; Tamb = 25 °C; see Figs 9 and 10; unless
V
otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Voltage controlled oscillator
fosc
oscillator frequency
carrier-to-noise ratio
151.2
−
248.2
MHz
C/N
fosc = 200 MHz; ∆f = 10 kHz
−
101
−
dBc
-----------
Hz
RR
ripple rejection
fripple = 100 Hz;
VDDA3(ripple) = 100 mV (RMS)
fosc = 250 MHz
−
−
97
99
−
−
dB
dB
fosc = 200 MHz
FEEDBACK INPUT: PIN OSCFDB
Vi(bias)
input bias voltage
2.2
2.8
3.4
V
TANK CIRCUIT OUTPUT: PIN OSCTNK
VO
DC output voltage
5
6.1
1.5
7.2
V
V
Vo(rms)
AC output voltage
(RMS value)
fosc = 200 MHz
−
−
Crystal oscillator
fxtal
crystal frequency
20.4996
20.5
20.5004
500
MHz
Rxtal
crystal motional
resistance
start of operating
−
−
Ω
Cxtal
C/N
crystal shunt capacitance
carrier-to-noise ratio
−
−
−
18
pF
fxtal = 20.5 MHz (10.25 MHz);
∆f = 10 kHz
112
−
dBc
-----------
Hz
CIRCUIT INPUTS: PINS XTAL1, XTAL2 AND XTALGND
Vxtal(rms)
crystal voltage
(RMS value)
note 2
−
350
2.1
−
−
mV
V
VXTAL1
,
DC bias voltage
1.7
−500
8
2.5
−
VXTAL2
Ri
Ci
real part of input
impedance
VXTAL1 − VXTAL2 = 1 mV;
Ω
note 1
input capacitance
note 1
10
12
pF
2001 Apr 12
12
NXP [ NXP ]
