SANYO LC8900KQ Datasheet

CMOS LSI

Ordering number : EN4128B

83096HA (OT)/7062JN No. 4128-1/12

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

Digital Audio Interface Receiver

LC8900KQ

Overview

The LC8900KQ is a CMOS LSI circuit chip that can be
used to enable the EIAJ CP-1201 formatted data
transmission between digital audio equipment. It is used
by the receiving end and operates synchronously with
input signals. This chip demodulates input signals into
normally-formatted signals.

Features

• On-chip PLL circuit: enables the LSI operation to be
synchronous to the transmitted EIAJ format input
signals.

• Four input pins and one output pin: The output pin
enables the input data to be sent as they are.

• Two data output function modes: 20-bit data LSB first
mode and 16-bit data MSB first mode.

• Four output clocks: Bit clock, LRCK, 384Fs and 256Fs.
All these clocks are synchronized to the data.

• Various signal outputs: copy inhibit, emphasis on:off
control, user’s bit, validity flag and sampling frequency.

• LPF time constant select mode: This function can be
used in the PLL lock-up state.

• Error detect signal output: If an input data error is
detected, this LSI circuit chip outputs the error signal.
In this case, the previous data will be output by the chip.

• Lock-up signal output: This signal is output when the
internal PLL (Phase Locked Loop) block of the LSI
circuit chip is locked.

• The chip has the pin to receive a signal for stopping the
PLL operation.

• Control and processing mode via microcontroller
interface: input pin select, copy information and
sampling frequency output.

• Each input pin has an internal amplifier circuit.

• Si gate, CMOS process technology and single 5V power
supply applicational and functional concept.

Applicational and Functional Concept

Package Dimensions

unit:mm

3148-QFP44MA

Preliminary

SANYO: QIP44MA

[LC8900KQ]

Pin Assignment

Block Diagram

No. 4128-2/12

LC8900KQ

Pin Functions

No. 4128-3/12

LC8900KQ

Pin No. Pin Name I/O Type Functional Description

1 DOUT O Input data output pin. However, its output is fixed at the low level if the DIN4 input pin is selected.
2 RC1 I RC oscillation pin
3 RC2 O RC oscillation pin
4 SEL1 I Input pin select pin
5 SEL2 I Input pin select pin
6 LPF I High level = LPF time constant select mode. low level = LPF time constant fixed mode. Fixed to high in most cases.
7 STOP I High = level:Forces the VCO operation to stop. Fixed to low in most cases.

I Output data format select pin.

8 OUTMODE High = 20-bit LSB first data format.

Low = 16-bit MSB first data format

9 TEST2 I Test pin:Connected to the DGND in most cases.
10 XMODE I Input pin to start the PLL operation immediately after the LSI chip is powered on.
11 DV

DD

Digital power supply

12 AV

DD

Analog power supply
13 R I VCO oscillation bandwidth adjust pin
14 AGND Analog ground
15 Vin I VCO self oscillation frequency setting pin
16 VCO O PLL LPF pin
17 DGND Digital Ground
18 TEST1 I Test pin:Connected to the DGND in most cases.
19 V O Validity flag output pin
20 FS256 O 256 Fs clock output pin
21 FS384 O 384 Fs clock output pin
22 DV

DD

Digital Power Supply
23 BCLK O Bit clock output pin
24 DATAOUT O Audio data output pin
25 LRCK O L/R clock output pin, Lch = high, Rch = low
26 EMPHA O Emphasis control (on/off) output pin:High = emphasis mode. Low = none-emphasis mode.
27 LOCK O PLL lock state output pin:High = PLL locked state. Low = PLL unlocked state.
28 ERROR O Input data error detect signal output:High = error detected.
29 COPY O Copy information output pin
30 BSA O Input data sampling frequency indication:High = 2 kHz.
31 CD O Input data sampling frequency indication:High = 44.1 kHz.
32 BSB O Input data sampling frequency indication:High = 48kHz.
33 U O User’s bit output pin
34 DO O Microcontroller interface output pin
35 DI I Microcontroller interface input pin
36 CE O Microcontroller interface chip enable input pin
37 CL O Microcontroller interface clock input pin

38 MODE I

Microcontroller interface control input:High = microcontroller interface active mode.

Low = microcontroller interface inactive mode.
39 DV

DD

Digital power supply
40 DIN1 I Data input pin
41 DIN2 I Data input pin
42 DIN3 I Data input pin
43 DIN4 I Data input pin
44 DGND Digital ground

Specifications

Absolute Maximum Ratings at Ta = 25°C

Allowable Operating Range at Ta = –30°C to +75°C

DC Characteristics at Ta = –30 to +75°C, VDD= 4.5 V to 5.5 V

AC Characteristics at Ta = –30 to 75°C, VDD= 4.5 to 5.5 V

Note 1: All input pins except DIN1, DIN2, DIN3, DIN4 and XMODE.
Note 2: XMODE pin
Note 3: VDD=5.0V, Ta = 25 °C, input Fs=48 kHz.
Note 4: Before DIN1 to DIN4 input capacity is exceeded.

No. 4128-4/12

LC8900KQ

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

DD

max Ta = 25°C –0.3 to +7.0 V

Input/output voltage V

I

· VOTa = 25°C –0.3 to V

DD

+0.3 V
Ambient operating temperature Topr –30 to +75 °C
Ambient storage temperature Tstg –55 to +125 °C

Parameter Symbol Conditions min typ max Unit

Supply voltage V

DD

4.5 5.0 5.5 V

Parameter Symbol Conditions min typ max Unit

Input high level voltage V

IH

*1 2.2 V

DD

+ 0.3 V

Input low level voltage V

IL

*1 –0.3 0.8 V

Input high level voltage V

IH

*2 0.8 V

DD

V

DD

+ 0.3 V

Input low level voltage V

IL

*2 –0.3 0.2 V

DD

Output high level voltage V

OH

IOH= –1 µA V

DD

– 0.05 V

Output low level voltage V

OL

IOL= 1 µA V

SS

+ 0.05 V

Current drain I

DD

*3 11 12 mA

Input amplitude V

IN

*4 0.4 V

DD

+ 0.3 V

P-P

Parameter Symbol Conditions min typ max Unit

Output pulse width t

WBO

Fs = 48kHz 160 ns

Output set-up time t

DSO

80 ns

Output data hold time t

DHO

80 ns