TDA6650 datasheet(10/55 Pages) PHILIPS

部品番号	TDA6650

部品情報	5 V mixer/oscillator and low noise PLL synthesizer for hybrid terrestrial tuner (digital and analog)

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メーカー	PHILIPS [NXP Semiconductors]

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10 / 55 page

2004 Mar 22

10

Philips Semiconductors

Product speciﬁcation

5 V mixer/oscillator and low noise PLL synthesizer

for hybrid terrestrial tuner (digital and analog)

TDA6650TT;

TDA6651TT

Table 4

Description of write data format bits

8.1.1

I2C-BUS ADDRESS SELECTION

The device address contains programmable address bits MA1 and MA0, which offer the possibility of having up to four

MOPLL ICs in one system. Table 5 gives the relationship between the voltage applied to the AS input and the MA1 and

MA0 bits.

Table 5

Address selection

BIT

DESCRIPTION

A

acknowledge

MA1 and MA0

programmable address bits; see Table 5

R/W

logic 0 for write mode

N14 to N0

programmable LO frequency; N = N14

× 214 + N13 × 213 + N12 × 212 + ... + N1 × 21 +N0

T/A

test/AGC bit

T/A = 0: the next six bits sent are AGC settings

T/A = 1: the next six bits sent are test and reference divider ratio settings

T2, T1 and T0

test bits; see Table 6

R2, R1, and R0

reference divider ratio and programmable frequency step; see Table 7

ATC

AGC current setting and time constant; capacitor on pin AGC = 150 nF

ATC = 0: AGC current = 220 nA; AGC time constant = 2 s

ATC = 1: AGC current = 9

µA; AGC time constant = 50 ms

AL2, AL1 and AL0

AGC take-over point bits; see Table 8

CP2, CP1 and CP0

charge pump current; see Table 9

BS5, BS4, BS3,

BS2 and BS1

PMOS ports control bits

BSn = 0: corresponding port is off, high-impedance state (status at Power-on reset)

BSn = 1: corresponding port is on; VO =VCC − VDS(sat)

VOLTAGE APPLIED TO PIN AS

MA1

MA0

0 V to 0.1VCC

00

0.2VCC to 0.3VCC or open-circuit

0

1

0.4VCC to 0.6VCC

10

0.9VCC to VCC

11

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