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PDF TDA6501 Data sheet ( Hoja de datos )
| Número de pieza | TDA6501 | |
| Descripción | (TDA6500 / TDA6501) 5V mixer/oscillator and synthesizer | |
| Fabricantes | NXP Semiconductors | |
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TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC
standards
Rev. 02 — 14 June 2005
Product data sheet
1. General description
TDA6500TT and TDA6501TT are programmable 2-mixer, 3-oscillator and synthesizer
MOPLLs intended for pure 3-band tuner concepts.
The device includes two double balanced mixers for the low and mid/high bands and three
oscillators for the low, mid and high bands, respectively. Other functions are an
IF amplifier, a wide-band AGC detector and a PLL synthesizer. Two pins are available
between the mixer output and the IF amplifier input to enable IF filtering for improved
signal handling.
The device can be controlled according to the I2C-bus format.
2. Features
s Single-chip, 5 V mixer/oscillator and synthesizer for TV and VCR tuners
s I2C-bus protocol compatible with 3.3 V and 5 V microcontrollers:
x Address + 6 data bytes transmission
x Address + 1 status byte (I2C-bus read mode)
x Four independent I2C-bus addresses
s Two PMOS open-drain ports with 5 mA source capability to switch high band and FM
sound trap (P2 and P3)
s One PMOS open-drain port P1 with 20 mA source capability to switch the mid band
s One PMOS open-drain port P0 with 10 mA source capability to switch the low band
s Five step, 3-bit Analog-to-Digital Converter (ADC) and NPN open-collector general
purpose port P6 with 5 mA sinking capability
s NPN open-collector general purpose port P4 with 5 mA sinking capability
s Internal AGC flag
s In-lock flag
s 33 V tuning voltage output
s 15-bit programmable divider
s Programmable reference divider ratio: 64, 80 or 128
s Programmable charge pump current: 60 µA or 280 µA
s Varicap drive disable
s Balanced mixer with a common emitter input for the low band (single input)
s Balanced mixer with a common base input for the mid and high bands (balanced input)
s 2-pin asymmetrical oscillator for the low band
s 2-pin asymmetrical oscillator for the mid band
s 4-pin symmetrical oscillator for the high band
1 page  
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
www.datasheet4u.com
Table 2: Pin description …continued
Symbol
Pin
Description
TDA6500TT TDA6501TT
MOSCOUT 4
29 mid band oscillator output
OSCGND 3
30 oscillator ground
P0 23 10 PMOS open-drain port 0 to select low band operation
P1 24 9
PMOS open-drain port 1 to select mid band operation
P2 26 7
PMOS open-drain general purpose port 2
P3 22 11 PMOS open-drain general purpose port 3
P4 17 16 NPN open-collector general purpose port 4
P6/ADC
18
15
NPN open-collector general purpose port 6 or ADC
input
PLLGND 13 20 digital ground
RFGND
29
4
RF ground
SCL 20 13 serial clock input
SDA
19
14
serial data input and output
VCC
10
23
supply voltage
VT 15 18 tuning voltage output
XTAL
14
19
crystal oscillator input
7. Functional description
7.1 General
TDA6500TT and TDA6501TT are programmable 2-mixer, 3-oscillator and synthesizer
MOPLLs intended for pure 3-band tuner concepts.
The device includes two double balanced mixers for the low and mid/high bands and three
oscillators for the low, mid and high bands respectively. The band limits for PAL tuners are
shown in Table 3.
Table 3:
Band
Low
Mid
High
Low, mid and high band limits
Input fRFpix (MHz)
Min Max
45.25
154.25
161.25
439.25
455.25
855.25
Oscillator fosc (MHz)
Min Max
84.15
193.15
200.15
478.15
494.15
894.15
Other functions are an IF amplifier, a wide-band AGC detector and a PLL synthesizer.
Two pins are available between the mixer output and the IF amplifier input to enable
IF filtering for improved signal handling.
Bit P0 enables Port P0 and the low band mixer and oscillator (see Table 4). Bit P1 enables
Port P1, the mid/high band mixer and the mid band oscillator. Bit P2 enables Port P2 and
bit P3 enables Port P3. When Ports P0 and P1 are disabled, the mid/high band mixer and
the high band oscillator are enabled.
9397 750 15057
Product data sheet
Rev. 02 — 14 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
5 of 37
5 Page 
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
8. Internal circuitry
www.datasheet4u.com
Table 15: Internal circuits
Symbol
Pin
LOSCIN
LOSCOUT
TDA6500TT
1
2
TDA6501TT
32
31
Average DC voltage versus band
selection
Low
Mid
High
1.7 1.4 1.4
2.9 3.5 3.5
Equivalent circuit [1]
(32) 1
2 (31)
OSCGND
MOSCOUT
MOSCIN
3
4
5
30 - - - -
29 3.5 3.02 3.5
28 1.4 1.7 1.4
(28) 5
fce222
4 (29)
HOSCIN1
HOSCOUT2
HOSCOUT1
HOSCIN2
6
7
8
9
27 2.2 2.2 1.8
26 5 5 2.5
25 5 5 2.5
24 2.2 2.2 1.8
(25) 8
(27) 6
fce223
7 (26)
9 (24)
VCC
10
23
5.0 5.0 5.0 -
IFGND
11
22
-
-
-
IFOUT
12
21
2.1 2.1 2.1
mce141
11 (22)
fce225
9397 750 15057
Product data sheet
Rev. 02 — 14 June 2005
12 (21)
fce226
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
11 of 37
11 Page | ||
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| PDF Descargar | [ Datasheet TDA6501.PDF ] | |
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