TEA6825T PHILIPS [NXP Semiconductors], TEA6825T Datasheet - Page 23

• Manufacturer Part Number: TEA6825T
• Description: In Car Entertainment ICE car radio
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
1998 Mar 24
handbook, full pagewidth
handbook, full pagewidth
In Car Entertainment (ICE) car radio
(1) AF: f = 450 kHz; m = 30%; f mod = 400 Hz.
(2) Noise: unweighted B = 250 Hz to 15 kHz.
(3) THD m = 80%.
(4) AM level voltage.
V 48-4
(dB)
–20
–40
–60
–80
20
0
10
–3
Fig.15 Signal, noise and distortion of AM AF output voltage and AM voltage level (typical curve).
f IF1 = 10.7 MHz
GENERATOR
R&S SMPC
R g = 50
10
–2
270
10 nF
10 nF
27
24
10
–1
Fig.14 Test circuit AM mixer.
TEA6823T
TEA6825T
(3)
(2)
22
23
23
1
8.5 V
7
7
nF
22
(1)
20
2.2
k
10
(S/N = 103 dB)
LOW NOISE
AVD 704201
AMPLIFIER
(4)
TEA6823T; TEA6825T
10
SPECTRUM
2
ANALYZER
Preliminary specification
HP8568A
V 33-34 (mV)
MHA705
MHA214
10
3
8
6
4
2
0
THD
(%)