Document
INTEGRATED CIRCUITS
DATA SHEET
TEA6810V; TEA6811V Front-end and PLL synthesizers for car radios
Product specification Supersedes data of September 1994 File under Integrated Circuits, IC01 1996 Jun 18
Philips Semiconductors
Product specification
Front-end and PLL synthesizers for car radios
FEATURES • Synthesizer function which includes a Voltage Controlled Oscillator (VCO), dividers, phase detector, charge-pump and in-lock detector • FM mixer with AGC • AM RF amplifier with AGC • AM mixer. APPLICATIONS • Car radios. GENERAL DESCRIPTION The TEA6810V and TEA6811V, together with TEA6821V forms an AM/FM receiving concept for electronically tuned car radios. The TEA681xV is an FM/AM front-end with one local synthesized oscillator for both AM and FM which is used together with the TEA6821T in a double-conversion concept. It delivers a first FM-IF of 72.2 MHz and, for MW/LW, a first AM-IF of 10.7 MHz. QUICK REFERENCE DATA SYMBOL VCCA1 VCCA2 VAMant VFMant fAMant fFMant Tamb PARAMETER analog supply voltage (pin 2) analog supply voltage (pin 13) AM AGC range FM AGC range AM input frequency FM input frequency operating ambient temperature see Fig.4 see Fig.5 CONDITIONS
TEA6810V; TEA6811V
Minimum alignments are required due to wideband RF inputs and the common AM/FM VCO. High dynamic behaviour and minimum distortion is obtained by a special RF input design combined with AGC. High sensitivity is possible in combination with RF input FETs. Minimum interference is experienced due a to special synthesizer loop design and ensuring that the I2C-bus is inoperative in the locked-tuned condition. The reference frequency for the synthesizer and the I2C-bus information is delivered by the TEA6821V. The programmable local/dx switch enables switching the gain of the FM mixer from normal AGC control (FM dx) to the forced 4th level of AGC (FM local).
MIN. 4.75 8.1 0.3 10 0.144 60 −40
TYP. 5.0 8.5 − − − − −
MAX. 5.25 8.9 6.0 600 22 108 +85 V V V
UNIT
mV MHz MHz °C
ORDERING INFORMATION TYPE NUMBER TEA6810V TEA6811V PACKAGE NAME VSO40 VSO40 DESCRIPTION plastic very small outline package; 40 leads plastic very small outline package; 40 leads; face down VERSION SOT158-1 SOT158-2
1996 Jun 18
2
ndbook, full pagewidth
1996 Jun 18
VCCOSC OSCFDB OSCGND FMAGCref OSCTNK 36 35 37 38 34 PIN DIODE DRIVER FMRFIN IPIDIO 32 FMRFIP 30 31 AM/FM OSCILLATOR VTUNE CHPOUT 39 40 CHARGE PUMP BUFFER BUFFER
BLOCK DIAGRAM
Philips Semiconductors
Front-end and PLL synthesizers for car radios
FMIFOP
AMAGCC
AMSB2
AMPREI AMSB1
FMIFON 11 FM
FMAGCC 12 33 27
AMPREC 28 25
24
26 22 AMPREO
AM
RF
AM/FM
AM/FM
AM/FM
TEA6810V TEA6811V
18 AMMIN
N2
AM
3
LCKDET VCCA2 AGND2
3
LOCK DETECTOR
AM/FM
13 PHASE DETECTOR 14
PROGRAMME DIVIDER N1
I2C-BUS CONTROL
BAND GAP
19
Vref
1 AGND1
6 frefN
7
2
17
23 n.c.
10 n.c.
20 n.c.
5 SCL
4 SDA
8 DGND
9 VCCD
15
16
21
29
TEA6810V; TEA6811V
frefP VCCA1 n.c.
AMMON AMMOP
AMMGND RFGND
MGE727
Product specification
Fig.1 Block .