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 I
2
C-bus format.
2.
Features
s
Single-chip, 5 V mixer/oscillator and synthesizer for TV and VCR tuners
s
I
2
C-bus protocol compatible with 3.3 V and 5 V microcontrollers:
x
Address + 6 data bytes transmission
x
Address + 1 status byte (I
2
C-bus read mode)
x
Four independent I
2
C-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
A or 280
A
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
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC
standards
Rev. 02 -- 14 June 2005
Product data sheet
9397 750 15057
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 -- 14 June 2005
2 of 37
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
s
IF preamplifier with asymmetrical 75
output impedance to drive a SAW filter
(500
/40 pF)
s
Wide-band AGC detector for internal tuner AGC:
x
Five programmable take-over points
x
Two programmable time constants
3.
Applications
s
TV and VCR tuners
s
Specially suited for switched concepts, all systems
s
Specially suited for strong off-air reception
4.
Ordering information
Table 1:
Ordering information
Type number
Package
Name
Description
Version
TDA6500TT
TSSOP32
plastic thin shrink small outline package; 32 leads;
body width 6.1 mm; lead pitch 0.65 mm
SOT487-1
TDA6501TT
9397 750 15057
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 -- 14 June 2005
3 of 37
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
5.
Block diagram
Fig 1.
Block diagram
mce149
REFERENCE
DIVIDER
64, 80, 128
CRYSTAL
OSCILLATOR
TDA6500TT
(TDA6501TT)
15-BIT
PROGRAMMABLE
DIVIDER
15-BIT
FREQUENCY
REGISTER
PHASE
COMPARATOR
LOCK
DETECTOR
CHARGE
PUMP
OPAMP
CP
FL
P0 . P1
CP
1
T2
T1
T0 RSA RSB OS
CONTROL
REGISTER
AL2
ATC
AL1 AL0
0
0
0
0
AUXILIARY
REGISTER
P6
0
0
P4
P3
P2
P1
P0
BAND SWITCH
REGISTER
STATUS
REGISTER
I
2
C-BUS
TRANSCEIVER
3-BIT ADC
POWER
ON RESET
AGC
FL
POR
f
ref
f
div
V
ref
OS
f
ref
f
div
GATE
MIXER
MID
+
HIGH
HIGH
OSCILLATOR
AGC
DETECTOR
STABILIZER
MIXER
LOW
RF INPUT
LOW
RF INPUT
MID + HIGH
T0, T1, T2
T0, T1, T2
RSA
RSB
XTAL
SCL
SDA
HOSCIN1
HOSCOUT2
HOSCOUT1
HOSCIN2
CP
VT
P6/ADC
14 (19)
13 (20)
17
(16)
22
(11)
26
(7)
24
(9)
23
(10)
PLLGND
20 (13)
AS
21 (12)
19 (14)
18 (15)
(18) 15
(17) 16
(24) 9
(25) 8
(26) 7
(27) 6
P1
+
P0 . P1
P1
P0
P0
AGC
AL0, AL1,
AL2
ATC
V
STAB
MID
OSCILLATOR
LOW
OSCILLATOR
LOSCOUT
LOSCIN
OSCGND
(32) 1
(31) 2
MOSCOUT
MOSCIN
(28) 5
(29) 4
MHBIN1
MHBIN2
32 (1)
31 (2)
LBIN
V
CC
V
CC
RFGND
29 (4)
30 (3)
10 (23)
(30) 3
IFGND
(22) 11
(21) 12
SAW
DRIVER
IFOUT
IFFIL2
(5) 28
IFFIL1
(6) 27
AGC
(8) 25
9397 750 15057
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 -- 14 June 2005
4 of 37
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
6.
Pinning information
6.1 Pinning
6.2 Pin description
Fig 2.
Pin configuration for TDA6500TT
Fig 3.
Pin configuration for TDA6501TT
TDA6500TT
001aac943
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
17
20
19
22
21
24
23
26
25
32
31
30
29
28
27
LOSCIN
LOSCOUT
OSCGND
MOSCOUT
MOSCIN
HOSCIN1
HOSCOUT2
HOSCOUT1
HOSCIN2
V
CC
IFGND
IFOUT
PLLGND
XTAL
VT
CP
MHBIN2
MHBIN1
LBIN
RFGND
IFFIL2
IFFIL1
P2
AGC
P1
P0
P3
AS
SCL
SDA
P6/ADC
P4
TDA6501TT
001aac944
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
17
20
19
22
21
24
23
26
25
32
31
30
29
28
27
LOSCIN
LOSCOUT
OSCGND
MOSCOUT
MOSCIN
HOSCIN1
HOSCOUT2
HOSCOUT1
HOSCIN2
V
CC
IFGND
IFOUT
PLLGND
XTAL
VT
CP
MHBIN2
MHBIN1
LBIN
RFGND
IFFIL2
IFFIL1
P2
AGC
P1
P0
P3
AS
SCL
SDA
P6/ADC
P4
Table 2:
Pin description
Symbol
Pin
Description
TDA6500TT TDA6501TT
AGC
25
8
AGC output
AS
21
12
address selection input
CP
16
17
charge pump output
HOSCIN1
6
27
high band oscillator input 1
HOSCIN2
9
24
high band oscillator input 2
HOSCOUT1 8
25
high band oscillator output 1
HOSCOUT2 7
26
high band oscillator output 2
IFFIL1
27
6
IF filter output 1
IFFIL2
28
5
IF filter output 2
IFGND
11
22
IF ground
IFOUT
12
21
IF output
LBIN
30
3
low band RF input
LOSCIN
1
32
low band oscillator input
LOSCOUT
2
31
low band oscillator output
MHBIN1
31
2
mid and high band RF input 1
MHBIN2
32
1
mid and high band RF input 2
MOSCIN
5
28
mid band oscillator input
9397 750 15057
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 -- 14 June 2005
5 of 37
Philips Semiconductors
TDA6500; TDA6501
5 V mixer/oscillator and synthesizer for PAL and NTSC standards
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
.
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.
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
V
CC
10
23
supply voltage
VT
15
18
tuning voltage output
XTAL
14
19
crystal oscillator input
Table 2:
Pin description
...continued
Symbol
Pin
Description
TDA6500TT TDA6501TT
Table 3:
Low, mid and high band limits
Band
Input f
RFpix
(MHz)
Oscillator f
osc
(MHz)
Min
Max
Min
Max
Low
45.25
154.25
84.15
193.15
Mid
161.25
439.25
200.15
478.15
High
455.25
855.25
494.15
894.15
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