Pin No.

Pin Name

I/O

Internal

Connection

Description

9

AUDIO

O

PMOS

Open Drain

Audio output

10

VREF

I

¾

Internal amplifier reference voltage

11

TS

I

¾

For IC test only

12

FVIB

O

¾

Vibrato frequency control

13

OSC2

O

¾

Oscillator output

14

OSC1

I

¾

Oscillator input

15

VIB

I

Pull-High

Switch to Vibrato mode (toggle)

16

TGU

I

Pull-High

Switch to Upward step mode

17

TGD

I

Pull-High

Switch to Downward step mode (internal pull-high)

18

ROB

I

Pull-High

Switch to Robot mode (internal pull-high)

Absolute Maximum Ratings

Storage Temperature ............................

-50°Cto125°C

Operating Temperature...........................

-20°Cto70 C

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed

in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

Electrical Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

Operating Voltage

¾¾

2.4

3.0

4.0

V

Operating Current

3V

¾

2.0

10

mA

Input Signal

3V

¾¾

¾

580

mV

Lamp Sink Current

3V

5.0

9.5

¾

mA

OPA Gain Value

3V

Open loop

¾

2000

¾

Audio Output Voltage

3V

During silence

¾-1

¾

mA

High Input Voltage

¾¾

¾¾

V

Low Input Voltage

¾¾

¾

¾

V

Oscillating Frequency

3V

W¾

512

¾

kHz

HT8950/HT8950A

Rev. 1.10

3

November 16, 2006