TDA9899HN/V2,551 NXP Semiconductors, TDA9899HN/V2,551 Datasheet - Page 14
TDA9899HN/V2,551
Manufacturer Part Number
TDA9899HN/V2,551
Description
IC IF PROCESSOR MULTISTD 48HVQFN
Manufacturer
NXP Semiconductors
Datasheet
1.TDA9899HLV2151.pdf
(103 pages)
Specifications of TDA9899HN/V2,551
Function
IF Processor
Rf Type
ATV, DVB, FM
Package / Case
48-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935282856551
TDA9899HN/V2-S
TDA9899HN/V2-S
TDA9899HN/V2-S
TDA9899HN/V2-S
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NXP Semiconductors
TDA9899_3
Product data sheet
8.3.4 Tuner AGC
8.4 DIF/SIF FM and AM sound AGC
8.5 Frequency phase-locked loop for VIF
Independent integral tuner gain control loop (not nested with VIF AGC). Integral
characteristic provides high control accuracy.
Accurate setting of tuner control onset (TOP) for integral tuner gain control loop via
I
For L standard, TAGC remains VIF AGC nested, as from field experience in the past this
narrow-band TAGC gives best performance.
Thus two switchable TAGC systems for negative/DIF and positive modulation
implemented.
L standard TAGC output changed from current output to voltage output, as it is not
necessary to adapt for other than 5 V tuner.
L standard tuner time constant switching integrated (= speed up function in the event of
step into high input levels), to minimize external application.
For high TOP accuracy at L standard, additional adjustment via optional potentiometer or
I
Tuner AGC status bit provided. This function enables TOP alignment without need for
TAGC voltage measurement (e.g. for TOP alignment in a complete set, where access to
internal signals is not possible).
External AGC control input for DIF. DIF includes 1st IF, zero IF and low IF.
Integrated gain control loop for SIF.
Bandwidth of AGC control for FM SIF related to used SAW bandwidth.
Peak AGC control in the event of FM SIF.
Ultra fast SIF AGC time constant for mobile mode.
Slow average AGC control in the event of AM sound.
AM sound AGC related to AM sound carrier level.
Fast AM sound AGC in the event of fast VIF AGC (speed up).
SIF AGC DC voltage monitor output with expanded internal characteristic.
Basic function as previous TDA9887 design.
PLL gating mode for positive and negative modulation, optional.
PLL optimized for either overmodulation or strong multipath (car mobile).
2
2
C-bus.
C-bus is provided.
Rev. 03 — 15 January 2008
Multistandard hybrid IF processing including car mobile
TDA9899
© NXP B.V. 2008. All rights reserved.
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