TDA3845T

更新时间： 2024-02-06 16:02:00

品牌	Logo	应用领域
恩智浦 - NXP		商用集成电路光电二极管
页数	文件大小	规格书
18页	137K
描述
Quasi split-sound circuit and AM demodulator

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

TDA3845T 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	SOP, SOP16,.25	Reach Compliance Code：	unknown
风险等级：	5.75	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G16	JESD-609代码：	e0
端子数量：	16	最高工作温度：	70 °C
最低工作温度：		封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
电源：	5,12 V	认证状态：	Not Qualified
子类别：	Other Consumer ICs	最大压摆率：	48 mA
表面贴装：	YES	技术：	BIPOLAR
温度等级：	COMMERCIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	Base Number Matches：	1

TDA3845T 数据手册

Philips Semiconductors

Objective speciﬁcation

Quasi split-sound circuit and AM

demodulator

TDA3845; TDA3845T

• Stabilizer circuit for ripple rejection and constant output

FEATURES

signals

• Power supply from 5 V (200 mW) to 8 V source also an

alternative 12 V source (12 V not for TDA3845T)

• ESD protection for all pins

• Suitable for all FM standards and L as well as L-accent

standard

• Gain controlled wideband IF amplifier (AC coupled with

three stages)

• NICAM compatible.

• High precision internal 90° phase shifter for quadrature

demodulator

• Amplitude detector for gain control which operates as a

peak detector for FM sound and as a mean level

detector for AM sound (switchable)

GENERAL DESCRIPTION

The TDA3845 is a quasi split-sound IF circuit which is

designed to provide high performance television FM/AM

sound.

• In-phase wideband synchronous demodulator for AM

detection

QUICK REFERENCE DATA

SYMBOL

PARAMETER

positive supply voltage

MIN.

TYP.

MAX.

UNIT

V_P1

V_P2

I_P

pin 14

4.5

5.0

8.8

pin 11 (not for TDA3845T)

supply current

10.8

−

12.0

13.2

−

µV

V_1-16(RMS)

minimum IF input voltage (RMS value)

IF control range

−

100

−

V_12-13(RMS)

(S +W)/W

intercarrier output voltage 5.5 MHz (RMS value) 70

100

−

signal-to-weighted-noise ratio

(relative to 1 kHz; 50 kHz deviation)

at 5.5 MHz for 2T/20T

−

550

−

at 5.742 MHz for 2T/20T

−

V_6-13(RMS)

(S +W)/W

THD

AF output voltage AM (RMS value)

signal-to-weighted-noise ratio; AM mode

total harmonic distortion; AM mode

operating ambient temperature

440

−

660

−

T_amb

−

+70

°C

ORDERING INFORMATION

PACKAGE

EXTENDED

TYPE NUMBER

PINS

PIN POSITION

DIL

MATERIAL

plastic

CODE

SOT38⁽¹⁾

SOT109A⁽²⁾

TDA3845

TDA3845T

SO16

plastic

Note

1. SOT38-1; 1996 November 28.

2. SOT109-1; 1996 November 28.

January 1993

123 4 5 6 7...18

下载PDF

与TDA3845T相关器件

型号	品牌	描述	获取价格	数据表
TDA3853T	NXP	TV IF amplifier and demodulator with TV-identification	获取价格
TDA3853T-T	NXP	暂无描述	获取价格
TDA3856	NXP	Quasi-split sound processor for all standards	获取价格
TDA3856T	NXP	Quasi-split sound processor for all standards	获取价格
TDA3857	NXP	Quasi-split sound processor with two FM demodulators	获取价格
TDA3858	NXP	Quasi-split sound processor for all standards	获取价格