PDF ML145146 Data sheet ( Hoja de datos )

Número de pieza	ML145146
Descripción	4-Bit Data Bus Input PLL Frequency Synthesizer
Fabricantes	LANSDALE Semiconductor
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No Preview Available ! www.DataSheet4U.com ML145146 4–Bit Data Bus Input PLL Frequency Synthesizer INTERFACES WITH DUAL–MODULUS PRESCALERS Legacy Device: Motorola MC145146-2 The ML145146 is programmed by a 4–bit input, with strobe and address lines. The device features consist of a reference oscillator, 12–bit programmable reference divider, digital phase detector, 10–bit programmable divide–by–N counter, 7–bit divide–by–A counter, and the necessary latch circuitry for accepting the 4–bit input data. • Operating Temperature Range: TA – 40 to +85°C • Low Power Consumption Through the Use of CMOS Technology • 3.0 to 9.0 V Supply Range • Programmable Reference Divider for Values Between 3 and 4095 • Dual–Modulus 4–Bit Data Bus Programming • ÷ N Range = 3 to 1023, ÷ A Range= 0 to 127 • “Linearized” Digital Phase Detector Enhances Transfer Function Linearity • Two Error Signal Options: Single–Ended (Three–State) Double–Ended OSCin OSCout D0 D1 D2 D3 A2 A1 A0 ST fin BLOCK DIAGRAM 12–BIT ÷ R COUNTER L5 L6 L7 fR LOCK DETECT LATCH CONTROL CIRCUITRY LATCHES L2 L3 L4 10–BIT ÷ N COUNTER L0 L1 7–BIT ÷ A COUNTER PHASE DETECTOR A PHASE DETECTOR B 20 1 P DIP 20 = RP PLASTIC DIP CASE 738 20 1 SOG 20 W = -6P SOG PACKAGE CASE 751D CROSS REFERENCE/ORDERING INFORMATION PACKAGE MOTOROLA LANSDALE P DIP 20 SOG 20W MC145146P2 ML145146RP MC145146DW2 ML145146-6P Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. LD PDout fV φV φR PIN ASSIGNMENT D1 D0 fin VSS PDout VDD OSCin OSCout A0 A1 1 2 3 4 5 6 7 8 9 10 20 D2 19 D3 18 fR 17 φR 16 φV 15 fV 14 MC 13 LD 12 ST 11 A2 CONTROL LOGIC MODULUS CONTROL (MC) Page 1 of 12 www.lansdale.com Issue 0 1 page ML145146 www.DataSheet4U.com LANSDALE Semiconductor, Inc. Page 5 of 12 www.lansdale.com Issue 0 5 Page ML145146 www.DataSheet4U.com LANSDALE Semiconductor, Inc. CHOICE OF REF. OSC. FREQUENCY (ON–CHIP OSC. OPTIONAL) 7 6 4 8 OSCout OSCin 18 15 13 fR fV LD PDout φR ML145146 VDD φV MOD CONTROL VSS fin D3 D2 D1 D0 A2 A1 A0 ST 19 20 1 2 11 10 9 12 }FOR USE WITH EXTERNAL PHASE DETECTOR (OPTIONAL) LOCK DETECT RECEIVER LO. SIGNAL 443.325 443.950 MHz (25 kHz STEPS) 5 TRANSMITTER }17 16 LOOP FILTER VCO CHOICE OF DETECTOR 14 ERROR SIGNALS MODULATION AND 15.7 MHz TRANSMITTER SIGNAL OFFSET 459.025 – 459.650 MHz (25 kHz STEPS) 3 ML12034 PRESCALER CHIP TO SHARED CONTROLLER BUS SELECT TO NOTES: CONTROLLER 1. Reciever I.F = 10.7 MHz, low side injection. 2. Duplex operation with 5 MHz receive/transmit separation. 3. fR = 25 kHz, + R chosen to correspond with desired reference oscillator frequency. 4. Ntotal = 17,733 to 17,758 = N • P + A; N = 227, A = 5 to 30 for P = 64. Figure 13. Synthesizer for UHF Mobil Radio Telephone Channels Demonstrates Use of the ML145146 in Microprocessor/Microcomputer Controlled Systems Operating to Several Hundred MHz RECEIVER CHOICE OF 2ND, L.O. REF. OSC. FREQUENCY (ON–CHIP OSC. OPTIONAL) X3 8 OSCout 7 OSCin 6 VDD fR fV ML145146 } 33,300 MHZ FOR USE WITH EXTERNAL PHASE DETECTOR (OPTIONAL) 5 LD PDout LOCK DETECT SIGNAL RECEIVER FIRST L.O. 825.030 844.980 MHZ (30 KHz STEPS) }φR 17 φV 16 MOD 14 LOOP FILTER VCO CHOICE OF DETECTOR ERROR SIGNALS X4 TRANSMITTER MODULATION X4 4 VSS CONTROL fin 3 D3 D2 D1 D0 A2 A1 A0 ST 19 20 1 2 11 10 9 12 TRANSMITTER SIGNAL 825.030 844.880 MHz (30 kHz STEPS) MC10131 ML12011 CHIP DUAL F/F ÷8/÷9 PRESCALER TO SHARED CONTROLLER BUS SELECT TO CONTROLLER +32/+32 DUAL MODULUS PRESCALER NOTES: 1. Receiver 1st I.F. = 45 MHz, low side injection; Receiver 2nd I.F. = 11.7 MHz, low side injection. 2. Duplex operation with 45 MHz receive/transmit separation. 3. fR = 7.5 kHz, + R = 1480. 4. Ntotal = N • 32 + A = 27,501 to 28,166: N = 859 to 880; A = 0 to 31. 5. Only one implementation is shown. Various other configurations and dual–modulus prescaling values to ÷128/÷129 are possible. Figure 14. 666 Channel, Computer Controlled, Mobile Radio Telephone Synthesizer for 800 MHz Cellular Radio Systems Page 11 of 12 www.lansdale.com Issue 0 11 Page

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