參數(shù)資料
型號(hào)： TDA6500TT/C4,118
廠商： NXP SEMICONDUCTORS
元件分類： 調(diào)諧器
英文描述： 3-BAND, VIDEO TUNER, PDSO32
封裝： 6.10 MM, 0.65 MM PITCH, PLASTIC, MO-153, SOT487-1, TSSOP-32
文件頁數(shù)： 33/37頁
文件大小： 223K
代理商： TDA6500TT/C4,118
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 amplier, a wide-band AGC detector and a PLL synthesizer.
Two pins are available between the mixer output and the IF amplier input to enable
IF ltering 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
VCC
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 fRFpix (MHz)
Oscillator fosc (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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