Datasheet > TDA3857

TDA3857

更新时间： 2024-01-08 16:12:38

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
14页	114K
描述
Quasi-split sound processor with two FM demodulators

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TDA3857 数据手册

Philips Semiconductors

Product speciﬁcation

Quasi-split sound processor with two FM demodulators

TDA3857

SYMBOL

Q_L

V_{10, 11}

PARAMETER

Q-factor of resonance circuit

DC voltage (pins 10 and 11)

CONDITIONS

Q_o= 90

MIN.

TYP. MAX.

UNIT

−

V_P− 1

Intercarrier mixer output (pin 15)

V_{o (RMS)}output signal for 5.5 MHz (RMS value)

125

output signal for 5.74 MHz (RMS

value)

IF bandwidth

−1 dB

−3 dB

note 1

−

8.5

−

MHz

−

V_VID/V₁₅

residual video AM on intercarrier

residual vision carrier (RMS value)

V_{VC (RMS)}

1st/2nd harmonic

(38.9/77.8 MHz)

0.5

R₁₅

I_o

output resistance (emitter follower)

allowable AC output current (pin 15)

allowable DC output current

DC voltage

1 mA emitter current

−

Ω

−

±0.7

−2

I₁₅

V₁₅

−

LC-circuit at pin 10, 11

adjusted to minimum

video content at pin 15

1.5

1.75

2.0

Limiting ampliﬁers (pins 13 and 17)

V_{i (RMS)}

minimum input signal (RMS value)

−3 dB AF signal

−

300

−

450

−

µV

Ω

maximum input signal (RMS value)

input resistance

200

450

−

R_{13, 17}

V_{13, 17}

V_{i (RMS)}

560

700

−

DC voltage

level detector threshold for no muting only 5.74 MHz channel

(RMS value, pin 17)

0.8

1.2

1.7

∆V_i

hysteresis of level detector

FM1 and FM2 demodulators

Measurements with FM IF input signals of 5.5 MHz and 5.74 MHz with V_{i IF (RMS)}= 10 mV (f_mod= 1 kHz, deviation

∆f = ±50 kHz) at pins 13 and 17 without ceramic ﬁlters, R_s= 50 Ω.

De-emphasis 50 µs.

Q_L-factor = 11 for resonant circuits at pins 4-5 and 8-9 (including IC).

V_{IC (RMS)}

intercarrier signals

−

100

−

(RMS values, pins 4-5 and 8-9)

DC voltage (pins 4, 5, 8 and 9)

−

1.8

−

V_{o (RMS)}

AF output signals

0.84

0.95

1.07

(RMS values, pins 6 and 7)

∆V_o

difference of AF signals between

channels (pins 6 and 7)

note 2

−

R_{6, 7}

V_{6, 7}

output resistance

DC voltage

100

2.1

130

2.4

Ω

1.8

June 1994

1...4 5 678 9 10...14

下载PDF

与TDA3857相关器件

型号	品牌	描述	获取价格	数据表
TDA3858	NXP	Quasi-split sound processor for all standards	获取价格
TDA3858/V3	NXP	IC AM/FM, AUDIO DEMODULATOR, PDIP32, 0.400 INCH, PLASTIC, SDIP-32, Receiver IC	获取价格
TDA3866	NXP	Quasi-split sound processor for all standards	获取价格
TDA3867	NXP	Quasi-split sound processor with two FM demodulators	获取价格
TDA3867T	NXP	Quasi-split sound processor with two FM demodulators	获取价格
TDA3867T-T	NXP	IC FM, AUDIO DEMODULATOR, PDSO28, Receiver IC	获取价格