TC9256APG Datasheet, PDF (1/34 Pages) Toshiba Semiconductor – PLL for DTS

TC9256, 57APG/AFG
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9256APG, TC9256AFG, TC9257APG,
TC9257AFG
PLL for DTS
The TC9256APG, TC9256AFG, TC9257APG and TC9257AFG
are phase-locked loop (PLL) LSIs for digital tuning systems (DTS)
with built-in two-modulus prescalers.
All functions are controlled through three serial bus lines.
These LSIs are used to configure high-performance digital
tuning systems.
Features
• Suitable for use in digital tuning systems in high-fi tuners and
car stereos.
• Built-in prescalers operate at an input frequency ranging from
30 to 150 MHz during FMIN input (with two-modulus
prescaler) and at 0.5 to 40 MHz during AMIN input (with
two-modulus prescaler or direct dividing)
• 16-bit programmable counter, dual parallel output phase
comparator, crystal oscillator and reference counter
• 3.6 MHz, 4.5 MHz, 7.2 MHz or 10.8 MHz crystal oscillators
can be used.
• 15 possible reference frequencies (when using 4.5 MHz
crystal):ref. = 0.5 k, 1 k, 2.5 k, 3 k, 3.125 k, 3.90625 k, 5 k, 6.25
k, 7.8125 k, 9 k, 10 k, 12.5 k, 25 k, 50 k and 100 kHz.
• Built-in 20-bit general-purpose counter for such uses as
measuring intermediate frequencies (IFIN1 and IFIN2) and
low-frequency pilot signal cycles (SCIN). (No cycle
measurement function is available on the TC9256APG and
TC9256AFG.)
• High-precision (±0.55 to ±7.15 µs) PLL phase error detection
• Numerous general-purpose I/O pins for such uses as
peripheral circuit control
• Four N-channel open-drain output ports (OFF withstanding
voltage: 12 V) for such uses as control signal output.
(TC9256APG and TC9256AFG have only three ports.)
• Standby mode function (turns off FM, AM and IF amps) to
save current consumption
• All functions controlled through three serial bus lines
• CMOS structure with operating power supply range of VDD =
5.0 ± 0.5 V.
• 16-pin DIP (TC9256APG), 20-pin DIP (TC9257APG), 16-pin
SOP (TC9256AFG), 20-pin SOP (TC9257AFG) packages
TC9256APG
TC9257APG
TC9256AFG
TC9257AFG
Weight
P-DIP16-300-2.54A: 1.0 g (typ.)
P-DIP20-300-2.54A: 1.24 g (typ.)
P-SOP16-300-1.27A: 0.16 g (typ.)
P-SOP20-300-1.27A: 0.48 g (typ.)
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2006-07-14