mc44827 Freescale Semiconductor, Inc, mc44827 Datasheet

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mc44827

Manufacturer Part Number
mc44827
Description
Low-power Tuning Circuit
Manufacturer
Freescale Semiconductor, Inc
Datasheet
Low Power PLL Tuning
Circuits for 3-Wire Bus
They contain on one chip all the functions required for PLL control of a VCO.
The integrated circuits also contain a high frequency prescaler and thus can
handle frequencies up to 1.3 GHz.
MC44827B has a fixed reference divider of 1024.
improved sensitivity performance and reduced power dissipation. The low
frequency preamplifier has been removed and the operational amplifier
pull–up resistor has been increased to 60 k .
have the same functions as the MC44828 which is I 2 C bus controlled. The
MC44827/27B and the MC44828 can be exchanged to allow conversion
between 3–wire bus and I 2 C bus control.
Motorola’s high density bipolar process, MOSAIC
Aligned Implanted Circuits).
MOSAIC is a trademark of Motorola, Inc.
MOTOROLA ANALOG IC DEVICE DATA
MC44827DTB
MC44827BDTB
Clock Inputs are I 2 C Bus Compatible
(V CC1 to 14.4 V)
Programmable Divider
Temperature Range
The MC44827/27B are tuning circuits for TV and VCR tuner applications.
The MC44827 has programmable 512/1024 reference divider while the
The MC44827/27B offer the same features as MC44817/17B but has
The MC44827/27B are controlled via a 3–wire bus. The MC44827/27B
The MC44827/27B are manufactured on a single silicon chip using
Complete Single Chip System for MPU Control (3–Wire Bus). Data and
Divide–by–8 Prescaler Accepts Frequencies up to 1.3 GHz
15 Bit Programmable Divider Accepts Input Frequencies up to 165 MHz
3–State Phase/Frequency Comparator
Operational Amplifier for Direct Tuning Voltage Output (30 V)
Four Integrated PNP Band Buffers can drive up to 40 mA
Output Options for the Reference Frequency and the
Bus Protocol for 18 or 19 Bit Transmission
Extra 34–Bit Protocol for Test and Further Features
High Sensitivity Preamplifier
Lower Power Consumption, 200 mW Typical
Improved Prescaler with Higher Margins for Sensitivity and
Lock Detector with Push–Pull Output
Space–Saving TSSOP Package
ESD Protected to MIL–STD–883C, Method 3015.7 (1.5 k ,100 pF)
Device
ORDERING INFORMATION
Temperature Range
T A = – 20 to + 80 C
T A = – 20 to + 80 C
Operating
(Motorola Oxide Self
TSSOP–16
TSSOP–16
Package
V CC1 5.0 V
Motorola, Inc. 1998
V CC2 33 V
Amp In
V TUN
HF In
XTAL
MC44827/27B
DA
CL
PLL TUNING CIRCUIT
FOR 3–WIRE BUS WITH
1.3 GHz PRESCALER
1
2
3
4
5
6
7
8
PIN CONNECTIONS
16
SEMICONDUCTOR
LOW–POWER
TECHNICAL DATA
Order this document by MC44827/D
PLASTIC PACKAGE
DTB SUFFIX
(TSSOP–16)
CASE 948F
(Top View)
1
16
15
14
13
12
11
10
9
EN
Lock
V CC3 12 V
B3
B2
B1
B0
Gnd
Rev 1
1

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mc44827 Summary of contents

Page 1

... Low Power PLL Tuning Circuits for 3-Wire Bus The MC44827/27B are tuning circuits for TV and VCR tuner applications. They contain on one chip all the functions required for PLL control of a VCO. The integrated circuits also contain a high frequency prescaler and thus can handle frequencies ...

Page 2

... RF Input Level (80 MHz to 1.3 GHz) NOTES CC3 = V CC1 to 14.4 V and – one buffer “On” only CC3 = V CC1 to 14.4 V and – ESD data available upon request. 2 MC44827/27B Figure 1. Representative Block Diagram V CC3 ...

Page 3

... HF Generator HF Out Gnd 1.0 nF 3 Cable 50 NOTES: 1. Device is in test mode. B2, B3 are “On” and B0, B1 are “Off”. 2. Sensitivity is level of HF generator on 50 MOTOROLA ANALOG IC DEVICE DATA MC44827/27B Pin Min 7 4 CC1 10–13 10–13 10– ...

Page 4

... V the tuning voltage V CC2 Operational amplifier positive supply ( CC1 7 Positive supply of 5.0 V the circuit (5 Input to prescaler 4 MC44827/27B (V CC1 = 5 C.) (See Figure 2.) Pin Min 8 – 5 Figure 4. Pin Circuit Schematic V CC1 V CC1 ...

Page 5

... N14 N13 N12 N11 N10 Buffers MOTOROLA ANALOG IC DEVICE DATA MC44827/27B PIN FUNCTION DESCRIPTION Description reset. The reset pulse is generated only if EN goes negative after the 18th clock pulse (signal RL). 34 Bit Data Transmission (For Test and Additional Features) ...

Page 6

... F ref Switched to Buffer Output B2 FBY2 Switched to Buffer Output B3 NOTE: Bits B2 and B3 have to be one in this case. F ref is the reference frequency. FBY2 is the output frequency of the programmable divider, divided by two. 6 MC44827/27B Figure 6. Equivalent Circuit of the Integrated Band Buffers Protection I B Gnd “ ...

Page 7

... TUN = 15 V with internal pull– one buffer “On” mA calculated with the following formula CC1 ) CC3 Example 23) Figure 8. Typical Tuner Application 5 Mixer MC44827/27B 1 Pres F osc Gnd Oscillator 330 p (Note – V CC2 TUN ...

Page 8

... C ––– 1.20 ––– 0.047 D 0.05 0.15 0.002 0.006 F 0.50 0.75 0.020 0.030 –W– G 0.65 BSC 0.026 BSC H 0.18 0.28 0.007 0.011 J 0.09 0.20 0.004 0.008 J1 0.09 0.16 0.004 0.006 K 0.19 0.30 0.007 0.012 K1 0.19 0.25 0.007 0.010 L 6.40 BSC 0.252 BSC Mfax is a trademark of Motorola, Inc. MC44827/D ...

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