SN761667 Datasheet, PDF (12/24 Pages) Texas Instruments – DIGITAL TV TUNER IC

SN761667
DIGITAL TV TUNER IC
SLES200 – JANUARY 2007
SYMBOL
MA[1:0]
N[14:0]
ATP[2:0]
RS[2:0]
CP[1:0]
AISL
P5
BS[4:1]
ATC
STBY
T3, T2,
T1/ATSS,
T0/XLO
X
Table 2. Write Data Symbol Description
DESCRIPTION
Address-set bits (see Table 3)
Programmable counter set bits
N = N14 × 2¹⁴ + N13 × 2¹³ + ... + N1 × 2 + N0
RF AGC start-point control bits (see Table 4)
Reference divider ratio-selection bits (see Table 5)
Charge-pump current-set bit (see Table 6)
RF AGC detector input selection bit
AISL = 0: IF amplifier
AISL = 1: Mixer output
Port output/ADC input control bit
P5 = 0: ADC INPUT
P5 = 1: Tr = ON
Band-switch control bits
BSn = 0: Tr = OFF
BSn = 1: Tr = ON
Band selection by BS[1:2]
BS1 BS2
1
0 VHF-LO
0
1 VHF-HI
0
0 UHF
1
1 Reserved
RF AGC current-set bit
ATC = 0: Current = 300 nA
ATC = 1: Current = 15 µA
Power standby mode-control bit
STBY = 0: Normal operation
STBY = 1: Standby mode/stop MOP function
(XTALOUT is available even in standby mode)
TEST bits, RFAGC shift bit, XTAL OUT control bit (see Table 7)
Don't care
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DEFAULT
N14 = N13 = N12 = ... = N0 = 0
ATP[2:0] = 011
RS[2:0] = 111
CP[1:0] = 11
AISL = 0
P5 = 0
BSn = 0
ATC = 0
STBY = 0
T[3:0] = 0010
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