HA7210IBZ96 데이터 시트보기 (PDF) - Intersil

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HA7210IBZ96

10kHz to 10MHz, Low Power Crystal Oscillator

Intersil 

HA7210

Typical Performance Curves (Continued)

620

580 F1 = 0, F2 = 0

540

500

460

420

380

1000pF

1µF

340

300 50Ω

260

2

3

HA7210

VDD = 5V, VSS = GND

436.5µA/V

180

178o

170

160

100Ω

150

140

10K

100K

1M

10M

FREQUENCY (Hz)

FIGURE 35. TRANSCONDUCTANCE vs FREQUENCY

500

460 F1 = 0, F2 = 1

VDD = 5V, VSS = GND

420

380

311.6µA/V

340

300

180

260

1000pF

1µF

177o

170

160

2

3

50Ω

HA7210

100Ω

150

140

130

10K

100K

1M

10M

FREQUENCY (Hz)

FIGURE 36. TRANSCONDUCTANCE vs FREQUENCY

240

F1 = 1, F2 = 0

220

VDD = 5V, VSS = GND

200

180

156.7µA/V

160

140

176.6o

180

120

1000pF

1µF

170

100

160

2

3

50Ω

100Ω

150

HA7210

140

10K

100K

1M

FREQUENCY (Hz)

130

10M

FIGURE 37. TRANSCONDUCTANCE vs FREQUENCY

20

15 F1 = 1, F2 = 1

10

VDD = 5V, VSS = GND

6.56µA/V

5

180

0

170

160

1000pF

166o

1µF

150

140

2

3

50Ω

100Ω

130

HA7210

120

10K

100K

FREQUENCY (Hz)

110

1M

FIGURE 38. TRANSCONDUCTANCE vs FREQUENCY

F1 = F2 = 1, VDD = 5V, CL = 18pF, TA = 25oC, fOSC = 32.768kHz

60

55

EPSON PART #

C-001R32.768K-A

50

XTAL

45

NDK PART #

MX-38

RS

2

3

40

OSC IN

OSC OUT

HA7210

35

0

20

40

60

80

100

120

RS (kΩ)

NOTE: Figure 39 (Duty Cycle vs RS at 32kHz) should only be used for 32kHz crystals. RS may be used at other frequencies to adjust Duty Cycle

but experimentation will be required to find an appropriate value. The RS value will be proportional to the effective series resistance of the crystal

being used.

NOTE: Refer to Test Circuit (Figure 1).

FIGURE 39. DUTY CYCLE vs RS at 32kHz

12

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