TDA7580 datasheet(9/39 Pages) STMICROELECTRONICS

9 / 39 page

TDA7580

Block diagram and electrical specifications

9/39

2.1

Pin description

Figure 2.

PIN connection (top view)

VHI

VCM

VLO

INP

INN

VCMOP

GNDSD

GNDOSC

XTI

XTO

VDDOSC

VDDMTR

CKREFP

CKREFN

AGCKEY

GNDMTR

GND

VDD

TST3_LRCKR

TST2_SCKR

LRCK_LRCKT

SCLK_SCKT

SDO0

VDDH

GNDH

TST1_SDI1

TST4_SDI0

GPIO_SDO1

TESTN

GND

VDD

RESETN

DEBUG1

HS3I

RDS

DEBUG0

IFADC Modulator Power Supply pins pair

Oscillator Power Supply pins pair

Tuner Clock Out and AGC Keying DAC Power Supply pins pair

Core Logic 1.8V Power Supply pins pair

I/O Ring 3.3V Power Supply pins pair

Table 5.

Pin description

N°

Name

Type

Description

Notes

After

Reset

1VHI

Internally generated IFADC Opamps

2.65V (@VDD=3.3V) reference voltage pin

for external filtering

It needs external

minimum 4.7

μF ceramic

capacitor

2VCM

Internally generated common mode 1.65V

(@VDD=3.3V) reference voltage pin for

external filtering

It needs external

minimum 10

μF ceramic

capacitor

3VLO

Internally generated IFADC opamps

0.65V (@VDD=3.3V) reference voltage pin

for external filtering

It needs external

minimum 4.7

μF ceramic

capacitor

INP

Positive IF signal input from tuner

2.0Vpp @VDD=3.3V

INN

Negative IF signal input from tuner

2.0Vpp @VDD=3.3V

VCMOP

Not connected.

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