Datenblatt-pdf.com


ML12210 Schematic ( PDF Datasheet ) - LANSDALE Semiconductor

Teilenummer ML12210
Beschreibung Serial Input PLL Frequency Synthesizer
Hersteller LANSDALE Semiconductor
Logo LANSDALE Semiconductor Logo 




Gesamt 11 Seiten
ML12210 Datasheet, Funktion
ML12210
Serial Input PLL
Frequency Synthesizer
Legacy Device: Motorola MC12210
The ML12210 is a 2.5 GHz Bipolar monolithic serial input
phase locked loop (PLL) synthesizer with pulse–swallow function.
It is designed to provide the high frequency local oscillator signal
of an RF transceiver in handheld communication applications.
The technology used allows for low power operation at a mini-
mum supply voltage of 2.7 V. The device is designed for operation
over 2.7 to 5.5 V supply range for input frequencies up to 2.5 GHz
with a typical current drain of 9.5 mA. The low power consump-
tion makes the ML12210 ideal for handheld battery operated
applications such as cellular or cordless telephones, wireless LAN
or personal communication services. A dual modulus prescaler is
integrated to provide either a 32/33 or 64/65 divide ratio.
• Low Power Supply Current of 8.8 mA Typical for ICC
and 0.7 mA Typical for Ip
• Supply Voltage of 2.7 to 5.5 V
• Dual Modulus Prescaler With Selectable Divide Ratios
of 32/33 or 64/65
• On–Chip Reference Oscillator/Buffer
• Programmable Reference Divider Consisting of a
Binary 14–Bit Programmable Reference Counter
• Programmable Divider Consisting of a Binary 7–Bit
Swallow Counter and an 11–Bit Programmable Counter
• Phase/Frequency Detector With Phase Conversion Function
• Balanced Charge Pump Outputs
• Dual Internal Charge Pumps for Bypassing the First
Stage of the Loop Filter to Decrease Lock Time
• Outputs for External Charge Pump
• Operating Temperature Range of TA = –40 to 85°C
NOTE: Also available is the ML12202, a 1.1 GHz version of this
function.
16
1
SO 16 = -5P
PLASTIC PACKAGE
CASE 751B
(SO–16)
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE MOTOROLA LANSDALE
SO 16
MC12210D ML12210-5P
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
MAXIMUM RATINGS (Note 1)
Parameter
Power Supply Voltage, Pin 4
Symbol
VCC
Value
–0.5 to 6.0
Unit
Vdc
Power Supply Voltage, Pin 3
Vp VCC to 6.0 Vdc
Storage Temperature Range
Tstg
–65 to 150
°C
NOTES: 1. Maximum Ratings are those values beyond which damage to the device may
occur. Functional operation should be restricted to the Recommended
Operating Conditions.
www.DataSheet4U.com
Page 1 of 11
www.lansdale.com
Issue A






ML12210 Datasheet, Funktion
ML12210
LANSDALE Semiconductor, Inc.
PHASE CHARACTERISTICS/VCO CHARACTERISTICS
The phase comparator in the ML12210 is a high speed digital phase frequency detector circuit. The circuit determines the “lead” or “lag”
phase relationship and time difference between the leading edges of the VCO (fp) signal and the reference (fr) input. Since these edges
occur only once per cycle, the detector has a range of ±2π radians. The phase comparator outputs are standard CMOS rail–to–rail levels
(VP to GND for φP and VCC to GND for φR), designed for up to 20MHz operation into a 15pF load. These phase comparator outputs
can be used along with an external charge pump to enhance the PLL characteristics.
The operation of the phase comparator is shown in Figures 3 and 5. The phase characteristics of the phase comparator are controlled by
the FC pin. The polarity of the phase comparator outputs, φR and φP, as well as the charge pump output Do can be reversed by switching
the FC pin.
Figure 3. Phase/Frequency Detector, Internal Charge Pump and Lock Detect Waveforms
fr
fp
LD
Do (FC = H)
BISW (LE = H or Open)
φR (FC = H)
φP (FC = H)
Do (FC = L)
BISW (LE = H or Open)
φR (FC = L)
φP (FC = L)
NOTES: Do and BISW are current outputs.
Phase difference detection range: –2π to +2π
Spike difference depends on charge pump characteristics. Also, the spike is output in order to diminish dead band.
When fr > fp or fr < fp, spike might not appear depending upon charge pump characteristics.
Internal Charge Pump Gain Isource + Isink = 4mA
4π 4π
H
L
H
L
H
L
Source
Z
Sink
H
L
H
L
Source
Z
Sink
H
L
H
L
Page 6 of 11
www.lansdale.com
Issue A

6 Page







SeitenGesamt 11 Seiten
PDF Download[ ML12210 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
ML12210Serial Input PLL Frequency SynthesizerLANSDALE Semiconductor
LANSDALE Semiconductor

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche