tda9884 NXP Semiconductors, tda9884 Datasheet - Page 19

• Manufacturer Part Number: tda9884
• Description: Tda9884 I2c-bus Controlled Multistandard Alignment-free If-pll For Mobile Reception
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TDA9884_2
Product data sheet
8.2.4 Data byte for data mode
Table 17.
Table 18.
[1]
[2]
[3]
Table 19.
[1]
Bit
E7
E6
E5
E4 to E2
E1 and E0
Function Bit E7 = 0
Pin OP1
Pin OP2
Gain
Video IF select bits
E4
0
0
0
0
1
1
The corresponding port function has to be disabled (set to ‘high-impedance’); see
If selected by the I
used for the normal port function.
If selected by the I
pin AGCSW. In this case, OP1 cannot be used for the normal port function.
Pin SIOMAD can be used for the selection of the different NTSC standards without I
on pin SIOMAD, f
Bit E5 = 0
port function port function
port function port function
normal gain minimum gain normal gain
Bit description of SAD register for data mode (SAD = 10)
Options
TV standard selection for VIF
VIF
2
2
C-bus, the VIF-AGC voltage can be monitored at pin OP2. In this case, OP2 cannot be
C-bus, pin OP1 can alternatively be used for external AGC control, activated by
= 58.75 MHz; without a resistor on pin SIOMAD, f
E3
0
0
1
1
0
0
Value
1
0
1
0
00
01
10
11
Bit E5 = 1
Rev. 02 — 12 May 2006
I
2
C-bus controlled multistandard alignment-free IF-PLL
Description
VIF-AGC features
dependent on bit E5; see
L standard PLL gating
gating in case of 36 % positive modulation (B4 = 0)
gating in case of 0 % positive modulation (B4 = 0)
optimum for multipath condition (B4 = 1)
optimum for overmodulation condition (B4 = 1)
VIF, SIF and tuner minimum gain
dependent on bit E7; see
vision intermediate frequency selection
see
sound intercarrier frequency selection (sound 2nd IF);
only valid for setting of bit E4 to bit E2 according to
f
f
f
f
FM
FM
FM
FM
Bit E7 = 1
Bit E5 = 0
port function
VIF-AGC output
= 4.5 MHz
= 5.5 MHz
= 6.0 MHz
= 6.5 MHz (for positive modulation choose 6.5 MHz)
Table 19
E2
0
1
0
1
0
1
and
Table 20
[1][2][3]
Table 18
Table 18
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
VIF
Bit E5 = 1
VIF-AGC external input
VIF-AGC output
external gain
= 45.75 MHz (NTSC-M).
f
58.75
45.75
38.9
38.0
33.9
33.4
VIF
Table
TDA9884
2
(MHz)
C-bus. With a resistor
[1]
[1]
14.
[1][2][3]
Table 19
19 of 58
[1][2][3]