參數資料
型號： TDA8295HN/C2
廠商： NXP SEMICONDUCTORS
元件分類： 接收器
英文描述： AM/FM, AUDIO/VIDEO DEMODULATOR, PQCC40
封裝： 6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT618-1, HVQFN-40
文件頁數： 35/83頁
文件大?。?/td> 3440K
代理商： TDA8295HN/C2
TDA8295_C2_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 27 November 2009
40 of 83
NXP Semiconductors
TDA8295
Digital global standard low IF demodulator for analog TV and FM radio
9.3.13 Status registers: ADC saturation, AFC, H/V PLL and AGC
Table 40.
SSIF_LEVEL register (address 23h) bit description
Legend: * = default value.
Bit
Symbol
Access Value
Description
7 to 5 -
R/W
-
not used
4 to 0 SSIF_LVL[4:0]
R/W
SSIF output level
0 0001
12 dB nominal; implemented for flexibility reasons.
With this setting, the adaptation to different standard
requirements can be done.
0 0010
6 dB nominal; implemented for flexibility reasons.
With this setting, the adaptation to different standard
requirements can be done.
0 0100*
Nominal setting; typical output level is 55 mV (RMS)
for PC / SC ratio of 13 dB (see Section 12).
0 1000
+6 dB nominal; implemented for flexibility reasons.
With this setting, the adaptation to different standard
requirements can be done.
1 0000
+12 dB nominal; implemented for flexibility reasons.
With this setting, the adaptation to different standard
requirements can be done.
X XXXX
don’t care if mono sound output is chosen
(SSIF_SND[1:0] = 01)
Table 41.
ADC_SAT register (address 24h) bit description
Bit
Symbol
Access Value
Description
7 to 0 ADC_SAT[7:0]
R
-
With ADC_SAT, the ADC saturation percentage in a
period of 40 ms can be calculated by the following
formula:
.
Table 42.
AFC register (address 25h) bit description
Bit
Symbol
Access Value
Description
7 to 0 AFC[7:0]
R
-
This is the readout for AFC[1]. AFC contains the
frequency deviation from nominal IF picture carrier.
The format is twos complement, 13.2 kHz steps are
done per LSB. See Table 43 and Figure 11 for details.
The frequency deviation could also be given by the
following formula:
.
For a frequency deviation from the nominal IF picture
carrier greater than the FPLL pull-in capability
(
830.6 kHz to +843.8 kHz or 1674.3 kHz to
+1687.5 kHz), the output reading is undefined. The
AFC lock indication can be taken from the N_H_LOCK
information from the H-sync PLL. The lock occurs
inside a frequency window, which is determined by the
pull-in capability of the FPLL.
saturation
ADC_SAT
256
------------------------- (%)
=
f
IF
f
nom
–
AFC
–
6 750
×
512
---------------------------------- (kHz)
=
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相關代理商/技術參數
參數描述
TDA8296 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital global standard low IF demodulator for analog TV and FM radio
TDA8296HN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital global standard low IF demodulator for analog TV and FM radio
TDA8296HN/C1,518 功能描述:調節(jié)器/解調器 DIGITAL GLOBAL IF DEMODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
TDA8296HN/C1,551 功能描述:調節(jié)器/解調器 DIGITAL GLOBAL IF DEMODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
TDA8296HN/C1,557 功能描述:調節(jié)器/解調器 DIGITAL GLOBAL IF DEMODULATOR RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel
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