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CF5035 series
1.8V, High-frequency Crystal Oscillator Module ICs
OVERVIEW
The CF5035 series are 1.8V operation, high-frequency crystal oscillator module ICs. They support 70MHz to 165MHz (1.8V) and 70MHz to 220MHz (2.5 to 3.3V) 3rd overtone oscillation and fundamental oscillation modes. The crystal oscillator circuit is a Colpitts oscillator with the necessary oscillator capacitors and feedback resistor built-in. The oscillation characteristics feature little variation with supply voltage, providing stable oscillation over a wide supply voltage range. The output circuit comprises a CMOS buffer that can operate at high frequencies and drive a 15pF capacitance load. The devices are fabricated using a proprietary BiCMOS process with the oscillator circuit and output buffer on a single chip, making them ideal as SMD-type high-frequency crystal oscillators.
FEATURES
I I
I I I I I
1.6 to 3.6V operating supply voltage range Oscillation frequency range (varies with version) 1.6 to 3.6V: 70MHz to 165MHz 2.25 to 3.6V: 70MHz to 220MHz - 40 to 85C operating temperature range Oscillation capacitors built-in Inverter amplifier feedback resistor built-in Oscillation detector function built-in Standby function * High impedance in standby mode, oscillator stops
I
I I I I I
Low standby current * Power-saving pull-up resistor built-in CMOS output duty level 15pF output load 8mA output drive capability (VDD = 1.6V) BiCMOS process Chip form (CF5035ALx)
APPLICATIONS
I
1.8V, high-frequency crystal oscillator modules
SERIES CONFIGURATION
Version CF5035ALA CF5035ALB CF5035ALC CF5035ALD 2.25 to 3.6 1.6 to 3.6 Operating supply voltage range [V] Recommended operating frequency range1 [MHz] 70 to 95 95 to 125 125 to 165 165 to 220 Built-in capacitance [pF] CIN 4 4 2 1 COUT 4 4 2 1
1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.
ORDERING INFORMATION
Device CF5035ALx-1 Package Chip form
SEIKO NPC CORPORATION --1
CF5035 series
PAD LAYOUT
(Unit: m)
VDD
7
TEST
6
Q
5
(1080,1320)
Y
1
2
3
4
(0,0)
INHN XIN XOUT VSS X
Chip size: 1.08 x 1.32mm Chip thickness: 300 30m PAD size: 100m x 100m (TEST: 80m x 80m) Chip base: VSS potential
PIN DESCRIPTION and PAD DIMENSIONS
Pad dimensions [m] No. Name I/O Description X 1 2 3 4 5 6 7 INHN XIN XOUT VSS Q TEST VDD I I O - O I - Output state control input. Oscillator stops when LOW. Power-saving pull-up resistor built-in. Oscillator input Oscillator output (-) ground Output. Output frequency. High impedance in standby mode Test (leave open) (+) supply voltage Crystal connection pins. Crystal is connected between XIN and XOUT. 205 461 734 945 945 494 135 Y 135 135 135 135 1185 1195 1185
BLOCK DIAGRAM
VDD VSS
INHN
Rf CMOS
DA5035
Q
XIN
CIN COUT
XOUT
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CF5035 series
ABSOLUTE MAXIMUM RATINGS
Parameter Supply voltage range Input voltage range Output voltage range Output current Storage temperature range Symbol VDD VIN VOUT IOUT TSTG Condition Between VDD and VSS Input pins Output pins Q pin Chip form Rating -0.5 to +5.0 VSS - 0.5 to VDD + 0.5 VSS - 0.5 to VDD + 0.5 25 -65 to +150 Unit V V V mA C
RECOMMENDED OPERATING CONDITIONS
CL 15pF
Rating Parameter Symbol Condition min 70MHz f 95MHz Supply voltage VDD 95MHz f 125MHz 125MHz f 165MHz 165MHz f 220MHz Input voltage Operating temperature VIN TOPR Input pins Chip temperature 5035ALA 5035ALB 5035ALC 5035ALD 1.6 1.6 1.6 2.25 VSS -40 typ - - - - - +25 max 3.6 3.6 3.6 3.6 VDD +85 V V V V V C Unit
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CF5035 series
ELECTRICAL CHARACTERISTICS
DC Characteristics
Recommended operating conditions unless otherwise noted.
Rating Parameter Symbol Condition min VDD = 1.6 to 2.0V 5035ALA f = 95MHz VDD = 2.25 to 2.75V VDD = 2.75 to 3.6V VDD = 1.6 to 2.0V Operating current consumption1 Measurement cct 1, INHN = open or HIGH, CL = 15pF 5035ALB f = 125MHz VDD = 2.25 to 2.75V VDD = 2.75 to 3.6V VDD = 1.6 to 2.0V 5035ALC f = 165MHz VDD = 2.25 to 2.75V VDD = 2.75 to 3.6V 5035ALD f = 220MHz Standby current HIGH-level output voltage LOW-level output voltage Output leakage current HIGH-level input voltage LOW-level input voltage INHN pull-up resistance IST VOH VOL IZ VIH VIL RPU1 RPU2 Measurement cct 1, INHN = LOW Q: Measurement cct 3, VDD = 1.6 to 3.6V, IOH = 8mA Q: Measurement cct 3, VDD = 1.6 to 3.6V, IOL = 8mA Q: Measurement cct 5, INHN = LOW, VDD = 3.6V INHN, Measurement cct 4 INHN, Measurement cct 4 Measurement cct 6 INHN = VSS INHN = 0.7VDD VOH = VDD VOL = VSS VDD = 2.25 to 2.75V VDD = 2.75 to 3.6V - - - - - - - - - - - - VDD - 0.4 - - - 0.7VDD - 0.4 30 typ 11 16 20 17 23 29 23 31 39 38 48 - VDD - 0.3 0.3 - - - - - - max 19 26 33 27 36 46 37 51 65 58 73 10 - 0.4 10 10 - 0.3VDD 4 150 mA mA mA mA mA mA mA mA mA mA mA A V V A A V V M k Unit
IDD
1. The operating current consumption includes the CL = 15pF capacitance load charging current.
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CF5035 series
AC Characteristics
Recommended operating conditions unless otherwise noted.
Rating Parameter Symbol Condition min Output duty cycle Duty Measurement cct 1, Ta = 25C, CL = 15pF VDD = 2.25 to 3.6V VDD = 1.6 to 2.25V 45 40 - - - - - - typ 50 50 1 1.5 1 1.5 - - max 55 60 2 2.5 2 2.5 2 200 % % ns ns ns ns ms ns Unit
tr1 Rise time tr2 tf1 Fall time tf2 Output enable delay time1 Output disable delay time tOE tOD
Measurement cct 1, CL = 15pF, VDD = 2.25 to 3.6V, 0.1VDD to 0.9VDD Measurement cct 1, CL = 15pF, VDD = 1.6 to 2.25V, 0.2VDD to 0.8VDD Measurement cct 1, CL = 15pF, VDD = 2.25 to 3.6V, 0.9VDD to 0.1VDD Measurement cct 1, CL = 15pF, VDD = 1.6 to 2.25V, 0.8VDD to 0.2VDD Measurement cct 2, Ta = 25C, CL 15pF, INHN = LOW HIGH Measurement cct 2, Ta = 25C, CL 15pF, INHN = HIGH LOW
1. Oscillator stop function is built-in. When INHN goes LOW, normal output stops. When INHN goes HIGH, normal output is not resumed until after the oscillator start-up time has elapsed.
Timing chart
0.9VDD 0.8VDD 0.2VDD 0.1VDD
0.9VDD 0.8VDD 0.2VDD 0.1VDD
Q
TW T
DUTY measurement voltage (0.5V DD) DUTY= TW/ T 100 (%)
tr2 tr1
tf2 tf1
Figure 1. Output switching waveform
INHN
VIH VIL
tOD Q
Hi-Z
tOE
Figure 2. Output disable/enable timing chart
SEIKO NPC CORPORATION --5
CF5035 series
FUNCTIONAL DESCRIPTION
Standby Function
When INHN goes LOW, the device is in standby mode. The Q output becomes high impedance and the oscillator circuit stops.
INHN HIGH (or open) LOW Q fO output frequency High impedance Oscillator Normal operation Stopped
Power-saving Pull-up Resistor
The INHN pin pull-up resistance changes in response to the input level (HIGH or LOW). When INHN is tied LOW, the pull-up resistance becomes large, reducing the current consumed by the resistance. When INHN is left open, the pull-up resistance becomes small, such that even if the input is affected by external noise the outputs are stable due to INHN being tied HIGH by the pull-up resistor.
Oscillation Detector Function
The devices also feature an oscillation detector circuit. This circuit functions to disable the outputs until the oscillator circuit starts. This prevents abnormal oscillator output at oscillator start-up when power is applied or when INHN is switched.
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CF5035 series
MEASUREMENT CIRCUITS
Measurement cct 1
Measurement parameter: IDD, IST, Duty, tr , tf
IDD IST VDD XIN Q XOUT INHN VSS IDD: Open IST: Short CL = 15pF (Including probe capacitance) VIH V VIL X'tal XOUT INHN VSS Q
Measurement cct 4
Measurement parameter: VIH, VIL
A
VDD XIN X'tal
Note: The AC characteristics are observed using an oscilloscope on pin Q.
VIH: Voltage in VSS to VDD transition that changes the output state. VIL: Voltage in VDD to VSS transition that changes the output state. INHN has an oscillation stop function.
Measurement cct 2
Measurement parameter: tOE, tOD
Measurement cct 5
Measurement parameter: IZ
VDD C1 XOUT INHN VSS R1 VDD
or
VDD Q INHN VSS VDD Q
Signal Generator
A
IZ
or
VSS
VSS
XIN input signal: 1Vp-p, sine wave C1: 0.001F R1: 50
Measurement cct 6
Measurement parameter: RPU1, RPU2
Measurement cct 3
Measurement parameter: VOH, VOL
VDD
VDD 50 0.001F XOUT VSS 50 Q VOH V VOL 0.1F VS
INHN VSS RPU1 = VDD IPU (VIN = 0V)
Signal Generator
VIN V
A IPU
RPU2 = VDD 0.7VDD (VIN = 0.7VDD) IPU
V
VOH VS
VS VOL
V
VS adjusted such that V = 50 x IOH.
VS adjusted such that V = 50 x IOL.
XOUT input signal: 1Vp-p, sine wave
SEIKO NPC CORPORATION --7
CF5035 series
Please pay your attention to the following points at time of using the products shown in this document. The products shown in this document (hereinafter "Products") are not intended to be used for the apparatus that exerts harmful influence on human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such use from SEIKO NPC CORPORATION (hereinafter "NPC"). Customers shall be solely responsible for, and indemnify and hold NPC free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate government agencies.
SEIKO NPC CORPORATION
15-6, Nihombashi-kabutocho, Chuo-ku, Tokyo 103-0026, Japan Telephone: +81-3-6667-6601 Facsimile: +81-3-6667-6611 http://www.npc.co.jp/ Email: sales@npc.co.jp
NC0306BE 2006.04
SEIKO NPC CORPORATION --8

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