Document
TENTATIVE
TD7624AFN
TOSHIBA BIPOLAR DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TD7624AFN
3-WIRE AND I2C 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 conforms to 3-wire bus and standard I2C bus formats. BUS-SW can be used to easily switch for easy tuner system set-up.
FEATURES
= Direct two modulus-type frequency synthesizer = Standard I2C 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 = 5-level A / D converter (when I2C bus selected)
= Frequency Step : 31.25 kHz, 50 kHz and 62.5kHz (at 4 MHz X’tal used)
= Phase lock detector = Four address settings via address selector (when I2C bus selected)
= Power on reset circuit
= Flat, compact package : SSOP16 (0.65 mm pitch)
= Power on reset operation condition
Bandswitch register 1 to 4
: OFF
Tuning amplifier
: ON
Tuning voltage output (Vt)
: Low level
Charge-pump output current : ±60 µA
Phase comparator reference frequency divider ratio
: 1 / 64
Weight: 0.07 g (Typ.)
Note: These devices are easy to be damaged by high static voltage or electric fields. In regards to this, please handle with care.
000707EBA1
· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling 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 control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control 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. · The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by
TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. · The information contained herein is subject to change without notice.
2001-03-01 1/21
BLOCK DIAGRAM
TD7624AFN
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC
SYMBOL
RATING UNIT
Supply Voltage 1 Supply Voltage 2 Power Consumption Operating Temperature Storage Temperature
VCC1 VCC2
PD Topr Tstg
6.0 12 560 −20~85 −55~150
V V mW °C °C
Note 1: When using the device at above Ta = 25°C, decrease the power dissipation by 4.5 mW for each increase of 1°C.
Note 2: These devices are easy to be damaged by high static voltage or electric fields. In regards to this, please handle with care.
RECOMMENDED SUPPLY VOLTAGE
PIN No.
PIN NAME
3 VCC1 : PLL Power Supply
4 VCC2 : Band Switch Power Supply
MIN
4.5 VCC1
TYP.
5.0 ―
MAX
5.5 9.9
UNIT
V V
2001-03-01 2/21
PIN INTERFACE
TD7624AFN
2001-03-01 3/21
TD7624AFN
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VCC1 = 5 V, VCC2 = 9 V, Ta = 25°C)
CHARACTERISTIC Supply Voltage 1 Supply Current 1 Supply Voltage 2
Supply Current 2
Bandswitch Drive Current Bandswitch Drive Maximum LOAD Bandswitch Drive Voltage Drop X’tal Operating Range X’tal Negative Resistance X’tal External Input Level Ratio Setting Range
Prescaler Input Sensitivity Lock Output Low Voltage Lock Output High Voltage Logic Input Low Voltage
SYMBOL
VCC1
ICC1
VCC2
ICC2-1
ICC2-2
IBD IBDMAX
VBD Sat OSCfin OSCR OSCin N14 N13 Vin1 Vin2 VLkL
VLkH
VBsL
TEST CIRCUIT
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