tda9898hn/v2 NXP Semiconductors, tda9898hn/v2 Datasheet - Page 19
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tda9898hn/v2
Manufacturer Part Number
tda9898hn/v2
Description
Tda9897; Tda9898 Multistandard Hybrid If Processing
Manufacturer
NXP Semiconductors
Datasheet
1.TDA9898HNV2.pdf
(103 pages)
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NXP Semiconductors
TDA9897_TDA9898_3
Product data sheet
9.1 Read format
Table 6.
Table 7.
[1]
[2]
[3]
[4]
Bit
7
6
5
4 to 1
0
Fig 7. I
AFCWIN
If no IF input is applied, then bit AFCWIN can be logic 1 due to the fact that the VCO is forced to the AFC
window border for fast lock-in behavior.
All standards except M/N standard.
M/N standard.
Typical time constant of FM carrier detection is 50 ms. The minimal recommended wait time for read out is
80 ms.
7
S
2
C-bus read format (slave transmits data)
AFC[4:1]
Symbol
AFCWIN
-
CARRDET
PONR
R1 - data read register 1 bit allocation
R1 - data read register 1 bit description
slave address
reserved
A6 to A0
6
BYTE 1
from master to slave
from slave to master
Rev. 03 — 11 January 2008
CARRDET
Description
AFC window
reserved
FM carrier detection
automatic frequency control; see
power-on reset
R/W
1 = VCO in 1.6 MHz AFC window
1 = VCO in 0.8 MHz AFC window
0 = VCO out of 1.6 MHz AFC window
0 = VCO out of 0.8 MHz AFC window
1 = detection (FM PLL is locked and level is less than 6 dB below
gain controlled range of FM AGC)
0 = no detection
1 = after power-on reset or after supply breakdown
0 = after a successful reading of the status register
5
1
A
[1]
AFC4
4
data (R1)
D7 to D0
BYTE 2
[4]
TDA9897; TDA9898
AFC3
3
Multistandard hybrid IF processing
A
Table 8
[2]
[3]
S = START condition
A = acknowledge
NA = not acknowledge
P = STOP condition
AFC2
2
[2]
[3]
data (R2)
D7 to D0
BYTE 3
AFC1
© NXP B.V. 2008. All rights reserved.
1
NA
001aad167
PONR
19 of 103
P
0
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