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參數(shù)資料
| 型號： | TDA6651TT |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 5 V mixer/oscillator and low noise PLL synthesizer for hybrid terrestrial tuner (digital and analog) |
| 中文描述： | 5伏混頻器/振蕩器，低噪聲的混合型地面調(diào)諧器鎖相環(huán)頻率合成器（數(shù)字和模擬） |
| 文件頁數(shù)： | 15/55頁 |
| 文件大?。?/td> | 377K |
| 代理商： | TDA6651TT |
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2004 Mar 22
15
Philips Semiconductors
Product specification
5 V mixer/oscillator and low noise PLL synthesizer
for hybrid terrestrial tuner (digital and analog)
TDA6650TT;
TDA6651TT
Table 14
ADC levels
Note
1.
Accuracy is
±
0.03V
CC
. Bit BS5 must be set to logic 0 to disable the BS5 output port. The BS5 output port uses the
same pin as the ADC and can not be used when the ADC is in use.
8.3
Status at Power-on reset
At power on or when the supply voltage drops below approximately 2.85 V (at T
amb
= 25
°
C), internal registers are set
according to Table 15.
At power on, the charge pump current is set to 580
μ
A, the test bits T[2:0] are set to 110 which means that the charge
pump is sinking current, the tuning voltage output is disabled and the ALBC function is disabled. The XTOUT buffer is
on, driving the 4 MHz signal from the crystal oscillator and all the ports are off. As a consequence, the high band is
selected by default.
Table 15
Default setting at Power-on reset
Notes
1.
2.
3.
X means that this bit is not set or reset at Power-on reset.
The next six bits are written, when bit T/A = 1 in a write sequence.
The next six bits are written, when bit T/A = 0 in a write sequence.
VOLTAGE APPLIED TO PIN ADC
(1)
A2
A1
A0
0.6V
CC
to V
CC
0.45V
CC
to 0.6V
CC
0.3V
CC
to 0.45V
CC
0.15V
CC
to 0.3V
CC
0 to 0.15V
CC
1
0
0
0
0
0
1
1
0
0
0
1
0
1
0
NAME
BYTE
BIT
(1)
MSB
LSB
Address byte
Divider byte 1 (DB1)
Divider byte 2 (DB2)
Control byte 1 (CB1)
1
2
3
4
1
0
1
0
0
0
MA1
N10 = X
N2 = X
R2 = X
MA0
N9 = X
N1 = X
R1 = X
X
N14 = X
N6 = X
T/A = X;
note 2
T/A = X;
note 3
CP1 = 1
N13 = X
N5 = X
T2 = 1
N12 = X
N4 = X
T1 = 1
N11 = X
N3 = X
T0 = 0
N8 = X
N0 = X
R0 = X
N7 = X
1
1
0
0
ATC = 0
AL2 = 0
AL1 = 1
AL0 = 0
Control byte 2 (CB2)
5
CP2 = 1
CP0 = 1
BS5 = 0
BS4 = 0
BS3 = 0
BS2 = 0
BS1 = 0
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