SINGLE STANDARD VIF-PLL DEMODULATOR AND FM-PLL DETECTOR
The SA9801 is a monolithic integrated circuit for vision and sound IF
signal processing in TV and VTR sets and multimedia front-ends.
∗ Suitable for negative vision modulation
∗ Applicable for IF frequencies of 38.9, 45.75 and 58.75 MHz
∗ Gain controlled wide-band Vision Intermediate Frequency (VIF)
∗ True synchronous demodulation with active carrier
regeneration (ultra-linear demodulation, good intermodulation
figures, reduced harmonics and excellent pulse response)
∗ Peak sync pulse AGC
∗ Video amplifier to match sound trap and sound filter
∗ AGC output voltage for tuner with fixed resistor for takeover
∗ AFC detector without extra reference circuit
∗ TV, VTR, PC and stb applications.
∗ Alignment-free FM-PLL detector with high linearity
∗ Stabilizer circuit for ripple rejection and to achieve constant
∗ 5 to 9 V positive supply voltage range
∗ Low power consumption of 300 mW at 5 V supply voltage.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Page 1 of 7