tea6845h-v2 NXP Semiconductors, tea6845h-v2 Datasheet - Page 25

• Manufacturer Part Number: tea6845h-v2
• Description: New In Car Entertainment Nice Car Radio
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2003 Feb 04
handbook, full pagewidth
handbook, full pagewidth
New In Car Entertainment (NICE) car radio
(1) Level DAA setting byte 6 = FFH.
(2) Level DAA setting byte 6 = 84H (standard setting).
(3) Level DAA setting byte 6 = 00H.
Test signal: T
V level
(V)
6
5
4
3
2
1
0
V pulse
10
rep
3
= 2 ms, t
Fig.3 AM level output voltage (DAA) as a function of AM level circuit input voltage.
T rep
r
test signal
< 50 ns, t
10
f
2
< 50 ns, and duty factor 50%.
50
4.7 nF
V pulse
Fig.4 Test circuit for AM noise blanker.
100
10
1
8.5 V
16
17
100
TEA6845H
25
1
13
(1)
(2)
(3)
V IFAMP1IN
10
58
59
61
64
63
1 k
1 k
10
2
V AMIF2IN (mV)
8.5 V
oscilloscope,
counter
MHB876
V level
V XTAL2
Product specification
TEA6845H
V
V
MHB484
IFAMP1IN
XTAL2
10
= 3 V.
3
= 4 V.