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부품번호 | CXA3275Q 기능 |
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기능 | PLL/OSC/MIX IC for Digital Tuner | ||
제조업체 | Sony Corporation | ||
로고 | |||
PLL/OSC/MIX IC for Digital Tuner
CXA3275Q
Description
The CXA3275Q is a monolithic tuner IC for single
conversion system digital broadcast tuners. This IC
integrates three sets of local oscillator and mixer
circuits (VHF Low Band/ VHF High Band/UHF Band),
an IF amplifier and a tuning PLL onto a single chip,
enabling further miniaturization of the tuner.
40 pin QFP (Plastic)
Features
• Balanced oscillators with low-phase noise and
excellent oscillation stability (UHF: 4 pins, VHF: 2 pins)
• High linearity mixer and IF amplifier
• IF output switchable between balanced and
unbalanced
• Low-phase noise PLL synthesizer
(3-wire bus format)
• Reference frequency programmable in 4 bits
• On-chip high voltage drive transistor for charge
pump
• On-chip 4-output band switch (PNP transistor
on/off)
• 40-pin QFP package
Applications
Digital CATV tuners
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage Vcc, PLLVcc –0.3 to +6.0 V
IFVcc
–0.3 to +6.0 V
• Storage temperature
Tstg –55 to +150 °C
• Allowable power dissipation
PD 1.58 W
(when mounted on a printed circuit board)
Operating Conditions
• Supply voltage Vcc, PLLVcc
IFVcc
• Operating temperature
Topr
4.5 to 5.5
4.5 to 5.5
–40 to +80
V
V
°C
Structure
Bipolar silicon monolithic IC
This IC has pins whose electrostatic discharge strength is weak as a high-frequency process is used for this IC.
Take care when handling the IC.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E00461-PS
CXA3275Q
Pin Symbol Pin voltage
No. [V]
14 IFIN2
2.7
3
14
15
15 IFIN1
2.7
Equivalent circuit
IFVcc
Description
5k 5k
IF inputs.
16 GND
0
17 MIXOUT2
—
18 MIXOUT1
—
18
20
17
20
GND
Mixer outputs.
19 Vcc
—
20 UIN2
VL/VH: 0
UHF: 1.9
19
21 UIN1
22 VHIN2
23 VHIN1
24 VLIN2
25 VLIN1
VL/VH: 0
UHF: 1.9
20 21
VH: 3
VL: 3.16
UHF: 3.24
VH: 3
VL: 3.16
UHF: 3.24
VH: 3.16
VL: 3
UHF: 3.24
VH: 3.16
VL: 3
UHF: 3.24
19
22 24
23 25
5k 5k
Band switch, mixer and local
oscillator circuit power supply.
Vcc
UHF inputs.
Vcc
VH and VL inputs.
–4–
4페이지 CXA3275Q
Electrical Characteristics (See the Electrical Characteristics Measurement Circuit.)
(Vcc = 5V, IFVcc = 5V, PLLVcc = 5V, Ta = 25°C)
Circuit Current
Item
Circuit current
Symbol
Measurement conditions
Iccv1
During VHF operation
Unbalanced output
Band switch output open
Iccu1
During UHF operation
Unbalanced output
Band switch output open
Iccv2
During VHF operation
Balanced output
Band switch output open
Iccu2
During UHF operation
Balanced output
Band switch output open
Min. Typ. Max. Unit
80 113 145 mA
85 120 151 mA
91 130 170 mA
100 137 177 mA
OSC/MIX/IF Amplifier Block
Item
Symbol
Measurement conditions
CG1-1 VL operation fRF = 50MHz, fIF = 39MHz
CG1-2 VL operation fRF = 150MHz, fIF = 39MHz
Conversion gain 1 ∗1
(Unbalanced)
CG1-3 VH operation fRF = 150MHz, fIF = 39MHz
CG1-4 VH operation fRF = 450MHz, fIF = 39MHz
CG1-5 UHF operation fRF = 450MHz, fIF = 39MHz
CG1-6 UHF operation fRF = 850MHz, fIF = 39MHz
CG2-1 VL operation fRF = 50MHz, fIF = 39MHz
CG2-2 VL operation fRF = 150MHz, fIF = 39MHz
Conversion gain 2 ∗1, ∗2 CG2-3 VH operation fRF = 150MHz, fIF = 39MHz
(Balanced)
CG2-4 VH operation fRF = 450MHz, fIF = 39MHz
CG2-5 UHF operation fRF = 450MHz, fIF = 39MHz
CG2-6 UHF operation fRF = 850MHz, fIF = 39MHz
NF1 VL operation fRF = 50MHz, fIF = 39MHz
NF2 VL operation fRF = 150MHz, fIF = 39MHz
Noise figure ∗1, ∗3
(Unbalanced)
NF3 VH operation fRF = 150MHz, fIF = 39MHz
NF4 VH operation fRF = 450MHz, fIF = 39MHz
NF5 UHF operation fRF = 450MHz, fIF = 39MHz
NF6 UHF operation fRF = 850MHz, fIF = 39MHz
Min.
18.5
19
19
19
23.5
24.5
25.5
26
26
26
30.5
31.5
Typ.
21.5
22
22
22
26.5
27.5
28.5
29
29
29
33.5
34.5
15.5
15
15
15
10.5
10.5
Max.
25
25.5
25.5
25.5
30
31
32
32.5
32.5
32.5
37
38
18.5
18
18
18
13.5
13.5
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
–7–
7페이지 | |||
구 성 | 총 22 페이지수 | ||
다운로드 | [ CXA3275Q.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
CXA3275Q | PLL/OSC/MIX IC for Digital Tuner | Sony Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |