TD7624AFN
TOSHIBA BIPOLAR DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TENTATIVE
TD7624AFN
2
3-WIRE AND I C BUS SYSTEM, 1.3 GHz DIRECT TWO MODULUS-TYPE FREQUENCY
SYNTHESIZER FOR TV AND CATV
The TD7624AFN can be combined with a micro CPU to create a
highly functional frequency synthesizer. The control data
2
conforms to 3-wire bus and standard I C bus formats. BUS-SW
can be used to easily switch for easy tuner system set-up.
FEATURES
= Direct two modulus-type frequency synthesizer
2
= Standard I C bus format control with built-in read mode
= 3-wire bus format control
= 18-bit and 19-bit automatic discrimination circuit
(when 3-wire bus selected)
= 4-bit bandswitch drive transistor
2
= 5-level A / D converter (when I C bus selected)
Weight: 0.07 g (Typ.)
= Frequency Step : 31.25 kHz, 50 kHz and 62.5kHz (at 4 MHz
X’tal used)
= Phase lock detector
2
= Four address settings via address selector (when I C bus selected)
= Power on reset circuit
= Flat, compact package : SSOP16 (0.65 mm pitch)
= Power on reset operation condition
Bandswitch register 1 to 4
Tuning amplifier
: OFF
: ON
Tuning voltage output (Vt)
Charge-pump output current
: Low level
: ±60 µA
Phase comparator reference frequency divider ratio : 1 / 64
Note: These devices are easy to be damaged by high static voltage or electric fields.
In regards to this, please handle with care.
000707EBA1
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can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the
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Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc..
· The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal
equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are
neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or
failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy
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instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document
shall be made at the customer’s own risk.
· The products described in this document are subject to the foreign exchange and foreign trade laws.
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· The information contained herein is subject to change without notice.
2001-03-01 1/21